Jack Dossey wears socks of two colours - Yellow and Orange. He has altoghter 20 yellow socks and 20 orange socks in a drawer. supposing he has to take out the socks in the dark, how many must he take out to be sure that he has a matching pair?​

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's. 

Iwould have to go with homosexual, his face gives it away