John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

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?

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?

How can you make number one disappear by adding something to it?

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

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

Can you solve this picture maths equation?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

Can you find the mistake in the below statement?