Can you tell a 3D object that has just two surfaces?

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

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

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

Can you solve this picture maths equation?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

John was piloting a plane behind a car but was never able to overtake it. Why?

How many letters are in the alphabet?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

What demands an answer, but asks no questions