Replace the question mark with the correct number below.

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

Which alphabet letter is a question?

What number should come in place of the question mark below?

During which month do people sleep the least?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?