I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

Can you identify if it's a murder or a suicide ?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?