What has no start, end, or centre?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

What is the next number in the series?

15 29 56 108 208 ?

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?

Find the number of squares in the below-given picture.

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

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?