What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

What does the below rebus puzzle mean?

It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers.

But do you know how many of these numbers are prime?

I am written with two letters.
I said with the one.
I usually am seen with the two.

Who am I?

You can see three almost identical images below. Can you spot the odd one out from them?

One animal is different from the rest in the picture, and the challenge for the readers is to spot it in 5 seconds.

1. How can we put an elephant in the refrigerator?
2. How can we put a Giraffe in a refrigerator?
3. The king of the jungle invites all the animals to a party everyone comes except for one animal, which animal?
4. You come to a crocodile-infested lake, you can't go around it, you can't co under it and you can't go over it, how do you get across?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

What happened when the wheel was invented?

Can you solve below mathematical equation?

2^1234 - 2^1233