나는 라면 먹고 싶어요, -- i think it would be better to add the verb for eating with 고 싶어요

Makeup - 화장 To put on makeup - 화장을 하다

- 냐 - is the interrogative suffix 왜냐하면 as far as i know is , "if you want to know why~ " kind of thing.

Correct would be "I hope he finds it interesting" The others wouldnt work so well

A past tutor told me that it is best in korean, when your trying to say something long, To break it down into small simple sentences, so you get your point across, but its not a difficult long sentence. Break it up into 3 seperate things! Simple and small is better than having such a long "because"

Well when i have used it in the past, its usually what you will do, "i'll cross my fingers for you" but yes you can use it that way to show that your wishing someone luck

http://www.talktomeinkorean.com/ Koreanclass101.com ---- these are both great websites! Especially korean class it have hours of audio / video lessons, but you have to subscribe, it takes you through all the basics too, i have had alot pf success with it And TTMIK is also really good its free to use has easy set out lessons for your level, but my website of choice is koreanclass101

어디요 - where are you? 뭐해요? / 뭐하고 있어요? - what are you doing / what are you doing (right now) 싫어요 - i hate you ( in korean you don't always need "you" the verb itself when speaking to someone is enough) In short : for present tense you take the dictionary form of the verb and add the appropriate ending 아/어/여 요