I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Count the number of triangles in the picture below:

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

Solve this riddle by finding the odd one out from the rest.

Can you fill the blank with the correct number?

6 30 870 756030 _____

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.