99 Money Riddles (Coins, Cash, Banks, and Clever Math)

Money riddles are sneaky because our brains love to rush the arithmetic. I built these 99 puzzles around coins, prices, change, saving, and classic traps, with answers that actually add up.

How to Use These Money Riddles

Cover the answer and solve each puzzle on paper before checking yourself. For the math questions, write down exactly what is being counted, because most “impossible” money puzzles become ordinary once the totals are labeled correctly.

Easy Coin and Cash Riddles

1. I am worth 5 cents in U.S. money. What coin am I?
   Answer: A nickel.
2. I am worth 10 cents but am smaller than a nickel. What am I?
   Answer: A dime.
3. Four of me make one dollar, and each of me is worth 25 cents. What am I?
   Answer: A quarter.
4. One hundred of me equal one dollar. What am I?
   Answer: Pennies.
5. Two quarters equal how many cents?
   Answer: 50 cents.
6. Three dimes equal how many cents?
   Answer: 30 cents.
7. A quarter plus a dime equals how much?
   Answer: 35 cents.
8. A nickel plus two pennies equals how much?
   Answer: 7 cents.
9. You have one dollar and spend 40 cents. How much remains?
   Answer: 60 cents.
10. You have $5 and receive another $5. How much do you have?
    Answer: $10.
11. A toy costs $8 and you pay with $10. How much change should you receive?
    Answer: $2.
12. A snack costs $1.25. You pay with $2. How much change is due?
    Answer: 75 cents.
13. Which is more: three quarters or seven dimes?
    Answer: Three quarters, worth 75 cents versus 70 cents.
14. Which is more: nine nickels or four dimes?
    Answer: Nine nickels, worth 45 cents versus 40 cents.
15. How many dimes make one dollar?
    Answer: 10.
16. How many nickels make one dollar?
    Answer: 20.
17. How many quarters make $2?
    Answer: 8.
18. How many pennies make 50 cents?
    Answer: 50.
19. I can be folded but I am not paper for homework. I can be spent but I am not time. What am I?
    Answer: A banknote or bill.
20. I hold money but am not a bank. I may live in your pocket. What am I?
    Answer: A wallet.
21. I hold coins and may have a zipper, but I am smaller than most wallets. What am I?
    Answer: A coin purse.
22. I keep money safe and may require a combination. What am I?
    Answer: A safe.
23. I show how much money entered and left an account. What am I?
    Answer: A bank statement or transaction history.
24. I am money you set aside instead of spending now. What am I?
    Answer: Savings.
25. I am the amount written on a price tag. What am I?
    Answer: The price.

Change and Price Riddles

26. A book costs $12 and a notebook costs $3. What is the total?
    Answer: $15.
27. You buy something for $14 and pay with $20. What change should you receive?
    Answer: $6.
28. Two identical pens cost $6 total. What does one pen cost?
    Answer: $3.
29. Three identical notebooks cost $15 total. What does each cost?
    Answer: $5.
30. A shirt is $20 and is discounted by $5. What is the new price?
    Answer: $15.
31. A $10 item goes up by $2. What is the new price?
    Answer: $12.
32. You have $25 and buy a $9 item and a $6 item. How much remains?
    Answer: $10.
33. A family buys four $3 tickets. What is the total cost?
    Answer: $12.
34. Five drinks cost $2 each. What is the total?
    Answer: $10.
35. A game costs $30. You save $5 each week. How many weeks until you have $30?
    Answer: 6 weeks.
36. You save $4 on Monday and $6 on Tuesday. How much have you saved?
    Answer: $10.
37. You have $50 and spend half. How much remains?
    Answer: $25.
38. You have $24 and divide it equally among four people. How much does each receive?
    Answer: $6.
39. Three friends split $21 equally. How much does each get?
    Answer: $7.
40. A $16 bill is split equally between two people. How much does each owe?
    Answer: $8.
41. You pay $10 for a $7.50 item. What change is due?
    Answer: $2.50.
42. An item costs $4.99 and you hand over $5. What change is due?
    Answer: 1 cent.
43. You buy two $1.50 snacks. What is the total before tax?
    Answer: $3.
44. A $9 item and an $11 item cost how much together?
    Answer: $20.
45. You have three $5 bills. How much money is that?
    Answer: $15.
46. You have two $10 bills, one $5 bill, and three $1 bills. How much is that?
    Answer: $28.
47. A jar has eight quarters. How much money is inside?
    Answer: $2.
48. A jar has 15 dimes. How much is inside?
    Answer: $1.50.
49. A jar has 12 nickels. How much is inside?
    Answer: 60 cents.
50. You have 99 cents. What is the smallest additional amount needed to reach $1?
    Answer: 1 cent.

Clever Money Math

51. A bat and ball cost $1.10 total. The bat costs $1 more than the ball. How much is the ball?
    Answer: 5 cents. The bat is $1.05, making $1.10 total.
52. You have two coins totaling 30 cents, and one of them is not a nickel. What are the coins?
    Answer: A quarter and a nickel. One coin is not a nickel, but the other one can be.
53. A father gives one child $10 and another child $5. How much did he give away?
    Answer: $15.
54. You double $5. How much do you have?
    Answer: $10.
55. You triple $4. How much do you have?
    Answer: $12.
56. You have $20. You lose a quarter of it. How much remains?
    Answer: $15.
57. You have $40 and spend 25%. How much do you spend?
    Answer: $10.
58. A $50 item is discounted 20%. What is the discount amount?
    Answer: $10.
59. After a $10 discount on a $50 item, what is the sale price?
    Answer: $40.
60. A $100 item is half price. What does it cost?
    Answer: $50.
61. You save $1 on day one, $2 on day two, and $3 on day three. How much total?
    Answer: $6.
62. You save $2 each day for seven days. How much total?
    Answer: $14.
63. A cashier gives you three quarters and two dimes. How much change is that?
    Answer: 95 cents.
64. A cashier gives you two quarters, three dimes, and four pennies. How much change is that?
    Answer: 84 cents.
65. Which is worth more: one $10 bill or forty quarters?
    Answer: They are equal at $10.
66. Which is worth more: twenty dimes or eight quarters?
    Answer: They are equal at $2.
67. A $6 pizza is split into three equal shares. What is each share’s cost?
    Answer: $2.
68. A $15 purchase is paid with a $20 bill. What percentage of the $20 was spent?
    Answer: 75%.
69. You have $60 and save one third. How much do you save?
    Answer: $20.
70. You have $60 and spend one third. How much remains?
    Answer: $40.
71. A $24 item is split into four equal payments. How much is each payment?
    Answer: $6.
72. Two people each contribute $7 to a gift. How much money is collected?
    Answer: $14.
73. Six people each contribute $5. How much is collected?
    Answer: $30.
74. A $35 bill is paid with two $20 bills. How much change is due?
    Answer: $5.
75. You have $18 and need $25. How much more do you need?
    Answer: $7.

Classic Money Traps Explained

76. Three people pay $30 for a room. Later, $5 is returned. A helper keeps $2 and gives each guest $1. They each paid $9, totaling $27, plus the helper’s $2 makes $29. Where is the missing dollar?
    Answer: There is no missing dollar. The $27 already includes the helper’s $2: $25 went to the room and $2 to the helper. Adding $2 again double-counts it.
77. You buy an item for $7, sell it for $8, buy it back for $9, and sell it for $10. What is your total profit?
    Answer: $2. You make $1 on each buy-sell cycle.
78. You spend $20 and receive $5 change. What was the purchase price?
    Answer: $15.
79. You have $10, spend $10, and still have $10 in your wallet. How?
    Answer: You may have had more than $10 to begin with. The statement never says $10 was all you had.
80. You have $5 in one pocket and $5 in another. How much do you have?
    Answer: $10.
81. You owe a friend $10 and pay back $4. How much do you still owe?
    Answer: $6.
82. A $12 purchase is split between two people, but one pays $8. How much must the other pay?
    Answer: $4.
83. You have $100, spend $40, then spend $30. How much remains?
    Answer: $30.
84. You start with $30, spend $10, then receive $5. What is your final balance?
    Answer: $25.
85. A store says “Buy one $4 item, get the second for $2.” What do two cost?
    Answer: $6.
86. A store says “3 for $9.” What is the price per item if the deal divides evenly?
    Answer: $3.
87. A shop sells five pencils for $10. What is the average price per pencil?
    Answer: $2.
88. You have three $10 bills and exchange them for six $5 bills. Did your total money change?
    Answer: No. Both totals are $30.
89. You exchange four quarters for ten dimes. Did the total value change?
    Answer: No. Both equal $1.
90. You exchange two $5 bills for one $10 bill. Did you gain money?
    Answer: No. The value is unchanged.
91. A price rises from $10 to $12. How much did it rise in dollars?
    Answer: $2.
92. A price falls from $20 to $15. How much did it fall?
    Answer: $5.
93. A person says, “I saved $20 by buying a $100 item I did not need for $80.” Did they necessarily save money overall?
    Answer: No. They spent $80. A discount is not the same as net savings if the purchase was unnecessary.
94. You buy a $2 item with a $20 bill. What is the largest part of the transaction?
    Answer: The change, which is $18.
95. A bank balance is $50. A $20 deposit posts. What is the new balance, assuming nothing else changes?
    Answer: $70.
96. A bank balance is $50. A $20 withdrawal posts. What is the new balance, assuming nothing else changes?
    Answer: $30.
97. You have $9 in cash and $11 in a bank account. What is your combined money?
    Answer: $20.
98. You earn $12 and spend $7. What is your net increase?
    Answer: $5.
99. You earn $10 and spend $15. What is your net change?
    Answer: A decrease of $5.