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?

Different lights make me strange by changing me into different sizes. What am I?

how come the second man dies?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

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?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Before Mount Everest was discovered, what was the highest mountain in the world?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

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