Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

Can you identify the famous TV character from the rebus below?

I have no life, but I can die. What am I?

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

Buy me, smell me or deliver me, I do not change.

Who am I?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?