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

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

Can you place six X (crosses) in below board without making three in a row in any way ?

How many triangles are there on the puzzle below?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

What time is it when an elephant sits on a fence?

Prove that the below maths equation is true.

8 + 8 = 91

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?