A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

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

What month of the year has 28 days?

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

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

When is the top of a mountain similar to a savings account?

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

I have Rs.50 and I spend it in the way as below.