Find the next number in the sequence

1, 2, 6, 21, 88, __?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

What came first, the chicken or the egg?

Can you move 2 matchsticks to form four equal sized squares.

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

What does the below image rebus riddle means ?

What does it mean?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat