Replace the question mark with the correct number.

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?

What can you see in the middle of March and April that you can never see in any other month?

There is a place where if I stand up straight, I will still be considered sideways.

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

What Adam and Eve do not have but the rest of the people have?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?