Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

I shave every day, but my beard stays the same. What am I?

Can you count the number of lines in the below picture?

What does an Island and the letter T have in common?

If your uncle’s sister is not your aunt, what relation is she to you?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?