What is the next number in this series?

4,12,84,3612....

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

Can you place three balls such that the equation shown in the picture holds true?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

How many times do a clock's hands overlap in a day ?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

In an office's desk, you find a unique method that shows the current day of the month. Two numbered cubes are used to depict the current date.

Can you find out the numbers on both the cubes so that each date can be mentioned using them?

Please note that you have to use both the cubes to display any date. Thus the 1st day must be represented by 01 and so on.

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?