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

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

How can you take 2 from 5 and leave 4?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Jack and Joseph are well-known golf rivals. One Day during a match, they were level at a score of 30. Jack hit a bad shot and Joseph added 10 to his score. Joseph then hit an awesome shot and he won the game.

How ?