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 has lots of eyes, but can’t see?

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?

what one word does the below rebus identifies?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Find the number of squares in the below-given picture.

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

What has no start, end, or centre?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

Find out the number of circles in the given picture having Illusion