What does it mean?

What brings you down but never up?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

John bought 150 chocolates but he misplaced some of them. His Father asked him how many chocolates were misplaced.
He gave the following answer to him:
If you count in pairs, one remains
If you count in threes, two remain
If you count in fours, three remain
If you count in fives, four remain
If you count in sixes, five remain
If you count in sevens, no chocolate remains.

Can you analyze the statements and tell us how many chocolates were lost?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

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

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

John is the son of Jacob.
So,
Jacob is the_____of John's father?