# Math Riddles

##### Half his Age (medium)

Question: When Tommy was 10 years old his sister Suzy was half his age. Now that Tommy is 50 years old how old is his sister Suzy?

##### Leap Year (medium)

Question: Leap Year is every 4 years. True or False ?

##### The Expensive Riddle (medium)

Question: A man lives in an apartment building on the 100th floor. He rides the elevator all the way down to floor 1 every morning then all the way up to floor 100 every evening. The elevator is coin-operated. It costs \$0.25 per floor for floors 1-25, \$0.50 per floor for floors 26-50, \$0.75 per floor for floors 51-75, and \$1.00 per floor for floors 75-100. How much money does the man spend each day riding the elevator?

##### Next in sequence (medium)

Question: 123-----111213-----31121113-----? What is the next term in the sequence?

##### Man walks into a Store (medium)

Question: Man walks into a store and says to the shop owner: “I will spend \$10 in your store if you double the amount of money I now have in my pocket.” Store owner agrees; doubles his money; he spends \$10 and leaves. He repeats this at 2 more stores. When he leaves the 3rd store he has \$0 dollars. How much money did he have in his pocket when he walked into the first store?