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

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

What has 88 keys?

How can you make number one disappear by adding something to it?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Find the next number in the following series:
6, 14, 26, 98, __?