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

Decode below rebus
D
N
A
T
S , D

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?

Can you fill the blank with the correct number?

6 30 870 756030 _____

Find the next number in the series.
1 10 24 43 67 ?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)