What goes up but never comes down?

Bay of Bengal is in which state?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

You are driving down the road in your car on a wild, stormy night, when you pass by a bus stop and you see three people waiting for the bus

An old lady looks as if she is about to die.
An old friend who once saved your life.
The perfect partner you have been dreaming about.
Knowing that there can only be one passenger in your car, whom would you choose?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Name a key which is hardest to turn.

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?