Can you count the number of triangles in the given figure?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

Why do we preferably have round manhole covers and not square ones?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

What Adam and Eve do not have but the rest of the people have?