What is the coolest letter in the alphabet?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Which is faster, Heat or Cold ? Explain.

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

Count the Triangle in the figure given below:

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 has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

What building has the most stories?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?