A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

Move four matchsticks to the below square to form three squares?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

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

What is red and smells like blue paint?

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?

One of the leprechaun is missing if you see the two pictures attached to this question. Where did he go? When he comes back, do you know where has he been?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

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