Count the number of triangles in the below picture?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

When I asked a girl's name she told me her name is the date '07/09/2001'.

I thought for a few seconds and then I got her name. Do you?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

What breaks yet never falls, and what falls yet never breaks?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

How many letters are in the alphabet?

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

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

In the given picture, in how many ways can you read the word "Tiger"?