A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

What number should come in place of the question mark below?

Can you find the company name in the pictogram below?

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

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

You are given 2 eggs.
You have access to a 100-storey building.
Eggs can be very hard or very fragile means it may break if dropped from the first floor or may not even break if dropped from 100th floor, Both eggs are identical.
You need to figure out the highest floor of a 100-storey building an egg can be dropped without breaking.
Now the question is how many drops you need to make. You are allowed to break 2 eggs in the process

What seven-letter word has hundreds of letters in it?

Can you identify if it's a murder or a suicide ?

What can you hold in your right hand, but never in your left hand?