There was a magic tree that on the first day increased its height by half, on the second by day by a third, on the third day by a quarter, and so on. How many days did it take it to grow one hundred times its original height?

Riddle Answer# Math Riddles

## Teaching Period

Three professors were discussing over how long they have been teaching. Andrew and Beyonce have been teaching for a total of thirty six years. Curt and Beyonce have been teaching for a total of twenty two years. Curt and Andrew have been teaching for a total of twenty eight years.

Can you find out how long have each of them been teaching?

Riddle Answer## John’s Age

John was asked how old he is. He said, “In 2 years I will be twice as old as I was 5 years ago.”

How old is John?

Riddle Answer## 2 Child Probability

Mr. Jones has two children. The older child is a girl. What is the probability that both children are girls?

Riddle Answer## Rich Merchant’s Gold Coins

A rich merchant had collected many gold coins. He did not want anybody to know about them. One day, his wife asked, “How many gold coins do we have?”

After pausing a moment, he replied, “Well! If I divide the coins into two unequal numbers, then 32 times the difference between the two numbers equals the difference between the squares of the two numbers.”

The wife looked puzzled. Can you help the merchant’s wife by finding out how many gold coins they have?

Riddle Answer