Can you decipher the two rows to find the hidden word?

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

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

Find the value of "a" by solving the maths equation in the picture below:

Count the number of lines in the image below ?

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

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Which Burger Is Different in below image?