Can you find out the total number of triangles in the given figure?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Why did the Girl throw the butter out of the window?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Three friends named Mr. Black, Mr. Yellow and Mr. Green enter a pub on a weekend night. They are wearing either a Black, Yellow or Green shirt.

Mr. Yellow says to them, 'Did you notice that we all are wearing different color shirts than our names?'

To this, the man who was wearing the Green shirt said. 'Wow, thats right.'

Can you identify who is wearing which colour shirt ?

You can hear me, but you can't touch or see me.

What am I?

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

Remove two matchsticks to make the below equation correct.