I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

In the image given, you can find several triangles. Can you count them all?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Find the missing number in the sequence below:

Which wheel of car does not rotate when you turn your car right?

Why do you find that most of the buildings are deprived of the 13th floor?

Who is that with a neck and no head, two arms and no hands? What is it?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?