How many sides does a circle have?

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?

Forwards I am heavy, backward I am not. What am I?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

People make me, save me, change me, raise me. What am I?

Can you make a six-letter word using the letters N, A and B ?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

I am sure no one can have two things for dinner. what are they?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?