I am white when I am dirty, and black when I am clean. What am I?

Why do Chinese men eat more rice than Japanese men do ?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

You need to remove two matchsticks to make the below equation true. Can you do it ?

A game is being played where eight players can last for thirty-five minutes. Six substitutes alternate with each player in this game. Thus, all players are on the pitch for the same amount of time including the substitutes.

For how long is each player on the pitch?

You are on your way to visit your Friend, who lives at the end of the hill. It is his birthday, and you want to give him the cakes you have made. Between your house and his house, you have to cross 5 bridges, and as it goes in the land of make believe, there is a troll under every bridge! Each troll, quite rightly, insists that you pay a troll toll. Before you can cross their bridge, you have to give them half of the cakes you are carrying, but as they are kind trolls, they each give you back a single cake. How many cakes do you have to leave home to make sure that you arrive at a friend's house with exactly two

How many words can a pen with half refill write?

Make a sentence consisting of three words that have the whole alphabet.

Usually, a boxing match consists of twelve rounds. In a particular friendly match between two heavyweights, the match was finished in the ninth round itself as one of the boxers knocked out the other one.

But, in that fight, no man threw even a single punch.

How can this be possible?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?