If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Look at the picture and find out which square is not linked with any of the other squares.

I am working in a bus company. The company recently went under expansion and therefore there was not enough room for all the buses. As a result, twelve buses had to be stored outside.

If the company decides to expand the garage space by forty percent, enough space to accommodate the current buses will be created leaving enough space for twelve more buses if the need arises in future.

Can you calculate the number of buses that the company owns at present?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Identify the hidden meaning behind this picture?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

Why is a river so rich ?

What is next number in the pattern below:

131 517 192 123 ?