How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

Spot what is wrong here in below Picture?

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

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 came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

Can you find out the total number of triangles in the given figure?

Solve the puzzle by telling what does below picture means.

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?