Who always enjoys poor health?

The dirtier I get, the whiter I look. Who am I?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

Who has married many women but was never married?

Can you place three balls such that the equation shown in the picture holds true?

What has 88 keys?

Which five letter word can be added at the end of below word to form a
valid word?

> Pin
> Check
> Boiling
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Why do people go to bed?

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?