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

People make me, save me, change me, raise me. What am I?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

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

What jumps when it walks and sits when it stands?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?