If 21x = 79x, what is the value of x?

A man dies of old age on his 25 birthday. How is this possible?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

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

What does this rebus mean?

O
N
C
E
TIME

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

Why did Navjot Singh Sidhu put the new January calendar in the freezer

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

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

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?