Which word does the below Plexor means ?

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

What is the next shape from answers A, B, C, and D figure?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

who is silent in the parliament?