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

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

I look at you, you look at me, I raise my right, you raise your left. What am I?

You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

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

John leaves home and then he takes three right turns. John wants to return to home but he was scared of Jacob, who is wearing a mask.

What is John Situation ?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?