I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

Can you find out the number that should replace the question mark with a valid reason?

Can you find the key in the picture below?

How many Watermelons are there in the below picture?

500 women soldiers are arranged in an array of ten rows and fifty columns in accordance with their respective heights. Now, the tallest woman from each row is asked to move out in the front. From them, the shortest one is labelled as Alpha. They are then asked to resume their original position.

Now, the shortest woman in each column is asked to come out in front. The tallest among them is labelled as Beta.

Can you find out if Alpha will be taller or Beta?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

If,

Akriti = 631
Levis = 521
Sroti = 521
Aneel = 533
Then,
Sunil =?

What does this mathematical rebus means ?

What can you catch but never throw?

What is both possible and impossible at the same time?