We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

Can you start the fire using two pieces of wood?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

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?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

You need to remove two matchsticks to make the below equation true. Can you do it ?

Identify the hidden meaning behind this picture?

Buy me, smell me or deliver me, I do not change.

Who am I?