Math Riddles

Question: Does an ounce of gold or an ounce of feathers weight more?

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

Question: if Donald trump has 57 dollars and he spends 26 dollars and the cashier guy gives him 36 cents back, how much money does he have?

Question: When is 99 EQUAL to 100? 😄 ----------- =

Question: Hard, Harder, and Hardest are brothers. By age from youngest to oldest, it goes Hard, Harder, Hardest. Hard is half the age of Hardest who is 20 which means hard is 10. Harder has a two-year difference between the number of years older he is than Hard and the number of years younger he is than Hardest. Harder is closer to the age of Hard than Hardest. How old is Harder?