I travel all around the world but always stay in the corner. What am I?

What famous saying does this rebus mean?

COME SERVED <---
COME SERVED
COME SERVED
COME SERVED
COME SERVED

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

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

What is red and smells like blue paint?

A bomb exploded in a room full of married couples and no one died. How?

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

I have an eye but still cannot see.

Who am I?

Who has married many women but was never married?

What number should come in place of the question mark below?