Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

What does this rebus puzzle mean?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

You need to move three matchsticks to form three squares. Can you do it?

Can you arrange the six given marbles in a manner that each one of them is touching all four marbles of different colours?