What question can you never answer yes to?

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?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

A man dies of old age on his 25 birthday. How is this possible?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

Can it be possible to build a house that has all its four walls facing towards the South?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

What goes through cities and fields, but never moves?

There is something which you can be arrested for attempting but not for successfully completing.