If 21x = 79x, what is the value of x?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

When does a USA Potato change its nationality?

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

What has one eye, but can’t see?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Can you name some countries which do not have the alphabet 'A' in them?

How many triangles can you count in the figure given?

A fresher was sitting in an interview. The interviewer said, "This is the last question of your interview. Tell me the accurate position of the centre of this table where your resume is kept."

How can he answer this question? What will you have answered to such a question?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10