Which alphabet is a part of our body?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Replace the question mark with the number below given a simple math problem.

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

I’m tall when I’m young, and I’m short when I’m old. What am I?

On a special event at the prison, 5 prisoners John, Jacob, Krist, Tang, and Dang given a chance to go to a sauna and can bring one thing with them.

Following are the things that the prisoners bring with them.
John: A soda
Jacob: Thermos
Krist: Book named "How to kill"
Tang: A Walkman
Dang: Harmonica

Since it is a Sauna, no one can see each other. After a while When the steam is switched, Tang was found dead and there was blood all around.
J Bond was called and he instantly come to know who can be the murderer. How?

James Bond is caught up in a mysterious scenario where the evil villain has him blindfolded. He somehow breaks through the handcuffs but is unable to get the blindfold off. Upon searching, he comes across a bow and 3 arrows. He can hear the villain speak, and thus tries to take a shot at him. He launches the first arrow, it misses the villain. He then launches the second arrow and it misses by a greater margin.

What is the probability that this third shot our James bond takes will be worse than the second shot?

What has many keys but can’t open a single lock?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?