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

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

why number 8549176320 is one of a kind?

Can you find out the remainder when 3^300 is divided by 5?

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?

Next Number in the Series,

5, 16, 49, 104, ?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

What has many teeth, but cannot bite?

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?