I’m tall when I’m young, and I’m short when I’m old. What am I?

What does this simple rebus mean?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

If eleven plus two equals one, what does nine plus five equal?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

There are three Athletes (John, Tarun and Harish) and their individual Coaches (Jacob, Meenaxi and Priyanka) standing on the shore.
No Coach trusts their Athlete to be near any other Coach unless they are also with them.
There is a boat that can hold a maximum of two persons.
How can the six people get across the river?

This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?