What has a ring but no finger?

What always comes into a house through the keyhole?

What do you answer even though it never asks you questions?

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?

How can you take 2 from 5 and leave 4?

Decode this picture on T-Shirt and tell what it says ?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

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

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

Solve the following series:
AZ, GT, MN, __, YB