What is the coolest letter in the alphabet?

What has a bottom at the top?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

How many triangles can you find in this given picture?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

In a basket of apples,
when counted in twos, there was one extra
when counted in threes, there were two extra when counted in fours, there were three extra
when counted in fives, there were four extra
when counted in sixes, there was five extra.

However, if the apples were counted in sevens, no extra apple was left. Can you calculate the minimum number of apples that were present in the basket?

Which Travels Faster? Solve below famous picture riddle:

What is wrong in the below Picture?

Find the number of squares in the below-given picture.