You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

John, Jack and Jill are in a desert. John doesn't like Jill and hence decides to murder him. He poisons the water supply of Jill. Since it is a desert area, Jill must drink or he will die of thirst.

Jack does not know of the actions of John and also decides to murder Jill. To succeed in his ill motives, he removes the water supply of Jill so he dies of thirst.

Jill dies due to thirst. Who murdered Jill?

A father's child, a mother's child, yet no one's son.

Who am I?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

You need to remove two matchsticks to make the below equation true. Can you do it ?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Take one out and scratch my head, I am now black but once was red. What am I?

I know a nine-letter word having only one vowel.
Do you ?