Find the number of squares in the below-given picture.

I’m tall when I’m young, and I’m short when I’m old. What am I?

Count the number of triangles in the given picture.

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

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?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

A sundial has the fewest moving parts of any timepiece. Which has the most?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?