A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

I’m tall when I’m young, and I’m short when I’m old. What am I?

What is the next number in this matchsticks series riddle?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

A blonde put eyeliner on her head. Why?

What does this rebus riddle mean?

What building has the most stories?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?