How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

Can you place three balls such that the equation shown in the picture holds true?

How can you tell a raw egg from a hard-boiled egg?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

At a Society election for president, precisely 963 votes were cast.
There is a total of 4 candidates that participate in the election.

The winning candidate exceeds the opponents by 53, 79 and 105 votes.

How many votes do each candidate gets?

I’m tall when I’m young, and I’m short when I’m old. What am I?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

O_er_t_o_

Complete the missing letters of the given word.

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?