Bay of Bengal is in which state?

What word begins and ends with an E, but has only one letter?

How many triangles are there on the puzzle below?

Count the squares in the matchstick puzzle below?

Which tank will fill first?

Can it be possible to build a house that has all its four walls facing towards the South?

How can you take 2 from 5 and leave 4?

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

People put me on the table and cut me but do not eat me. What am I?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?