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

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

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

What has many keys but can’t open a single lock?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

What is the fastest way to double your money?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?