What has no start, end, or centre?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

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?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Can you find out the missing number in the grid?

When it is alive we sing, when it is dead we clap our hands. What is it?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.

I always drive my customer away.

Who am I?