Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Can you solve the maths in the below-given picture equation?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?