Which is faster, Heat or Cold ? Explain.

What has no start, end, or centre?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Can you find the key in the picture below?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

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?

The dirtier I get, the whiter I look. Who am I?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

Can you replace the question mark with the correct number in the below table sequence?

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?