I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

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?

In the four images below, can you find the odd one out?

Can you find the mistake in the below statement?

What can you catch but never throw?

Below rebus represent famous DiCaprio movie. Can you name it?

In The Image Below Which clock is the odd one out?

Can you find the company name in the pictogram below?

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?