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

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

Replace the question mark with the correct number in the below-given picture?

Can you name some countries which do not have the alphabet 'A' in them?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

A car is crossing a 20 km-long bridge. The bridge can support at most 1500kg of weight over it. If somehow, the weight on the bridge becomes more than that, it will break.

Now, the weight of the car is exactly 1500kg. At the midway, a bird comes and sits on the roof of the car. This bird weighs exactly 200 grams.
Can you tell if the bridge breaks at this point or not?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

During which month do people sleep the least?

What does does this rebus picture means ?

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?