I may be wrong but I believe it is 'Ahyee' Like the English letter I. Then 't-all-k-ee'.

Paper is more like a slang word that is widely used when talking about an essay. It usually means the same thing EG: "The paper is due in a week" and "The essay is due in a week" mean the same thing in this situation. (You may already know this, I just like to be thorough) However, paper is also an object and doesn't always mean 'essay'. EG: "The child drew on the paper"

The correct one is 'can't'. It is what we call a 'contraction'. It is made from combining the two words 'Can' + 'Not'. We put the apostrophe ( ' ) where we dropped the letter (Got rid of 'o' so put an apostrophe there). 'Cann't' is not actually a word. When we write can't we drop one of the 'n' letters, I'm not sure why but that's just how it is.

Your previous comment mentioned you liked cinema and tv themed videos, so you might like this guy. This guy is American and points out the flaws and errors in certain movies. He's pretty funny too. https://www.youtube.com/user/CinemaSins

Your first sentence, 'When a farmer needs water, he likes rainy days' is correct. However your second sentence is not. Instead of saying 'When friends have a travel, they like sunny days.' You should say 'When friends travel, they like sunny days.'. This is because the word 'Travel' is not countable, so you usually shouldn't put 'have a' in front of it.