Keyboard words are not in alphabetical order, Why?

What's the only room from which no one can enter or leave

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

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

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

Can you count the number of quadrilaterals in the picture below?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

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?