2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Can you count the number of blocks in the picture below?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

In Greek mythology, the Sphinx sat outside of Thebes and asked this riddle of all travellers who passed by. If the traveller failed to solve the riddle, then the Sphinx killed him/her. And if the traveller answered the riddle correctly, then the Sphinx would destroy herself. The riddle:

What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?

Oedipus solved the riddle, and the Sphinx destroyed herself.

Why are all black people so quick ?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?