It is always ahead of me yet I can never see it. What is it?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Two old friends, Jack and Bill, meet after a long time.

Three kids
Jack: Hey, how are you, man?
Bill: Not bad, got married and I have three kids now.
Jack: That's awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool..But I still don't know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh, now I get it.

How old are Bill's kids?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

There were three women in all the swimming costumes!
One was happy and the other two were sad!
The happy one was crying and the sad ones were smiling.
Why was this?

Which English verb becomes past tense just by rearranging the letters?

What brings you down but never up?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?