What is the coolest letter in the alphabet?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

What is the word or phrase below?
R | E | A | D

What jumps when it walks and sits when it stands?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

what's the probability of getting a king or a queen from a pack of 52 cards?

I have eight fingers and two thumbs but I do not live. What Am I?

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?