What is next number in the pattern below:

131 517 192 123 ?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

What has a bottom at the top?

Can you find the hidden animal in the picture below?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

James ordered a fishing rod, priced at $3.56. Unfortunately, James is an Eskimo who lives in a very remote part of Greenland and the import rules forbid any package longer than 4 feet to be imported. The fishing rod was 4 feet and 1 inch, just a little too long, so how can the fishing rod be mailed to James without breaking the rules? Ideally James would like the fishing rod to arrive in one piece!

Find out the missing number in the picture attached:

What does this rebus puzzle means ?