What is black when you buy it, red when you use it, and gray when you throw it away?

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

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

It is always ahead of me yet I can never see it. What is it?

What Deficiency does the below rebus represent?

VIT_MIN

Prove that the below maths equation is true.

8 + 8 = 91

What has to be broken before you can use it?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

What always comes into a house through the keyhole?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?