I make two people out of one. What am I?

Why is a river so rich ?

Can you find out the missing number in the grid?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

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 ?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?