What four weights can be used to balance from 1 to 30 pounds?

Can you move 2 matchsticks to form four equal sized squares.

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

Replace the question mark with the correct number in the below-given picture?

What does this Rebus Picture mean?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?