Replace the question mark with the correct number in the below-given picture?

How many times in a given day, minutes and hour clock comes in a straight line ?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

A detective visits his friend John just to discover that John's neighbour Dr Jacob was murdered. Dr Jacob, who is a mathematician wrote the murderer's name in a code word "Hcqtfz". There were five suspects
1. Ajit
2. Pankaj
3. Ganpat
4. Deenu
5. Hariya

The Detective was instantly able to find the murderer.
Can you?

Bay of Bengal is in which state?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

A bomb exploded in a room full of married couples and no one died. How?