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?

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Find the next number in the series below

21 32 54 87 131 ?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?