10+10 and 11+11 can give you the same answer.

Explain how?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

How many triangles do you see in the picture puzzle below?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

Can you count the number of squares in the figure below?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?