There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

I know a nine-letter word having only one vowel.
Do you ?

Jim and Sarah are in a long-distance relationship. Jim buys an engagement ring for Sarah and wants to mail it to her. Unfortunately, the only way to ensure the ring will be received is to place a lock on the package. Jim has locks and Sarah has locks, but neither has keys for each other’s locks. How can they make sure the ring isn’t stolen?

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

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

What do you see in the given picture?

You see me once in June, twice in November, and not at all in May. What am I?

I can be cracked, made, told, and played. What am I?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?