If you say my name, I will no longer exist. What am I?

Why is a river so rich ?

What is at the end of a rainbow?

On a magical land of Mexico , all the animal in the land are rational.

There are 10 tigers and one goat.
Tiger can eat goat but since it's a magical land , the tiger who eats the goat , turns into goat and then can be eaten by the remaining tiger(s).

If we leave them for some time then how many goat and tiger will be there , when we come back ?

Solve this riddle by finding the odd one out from the rest.

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

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?