If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

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?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Before Mount Everest was discovered, what was the highest mountain in the world?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

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.