Keyboard words are not in alphabetical order, Why?

Solve the following series:
AZ, GT, MN, __, YB

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Find out the number of circles in the given picture having Illusion

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

What begins with T, ends with T, and has T in it?

Can you make a fire with just a single stick?