This time you will need to help some polar bears to solve their problems. You know, life in the arctic is hard, they may face difficulties about catching fish, keeping warm etc.
We hope that the polar bears are not going to eat you. Good Luck.
UPD: Scoring will be dynamic. Problems are sorted by increasing order of difficulty.
Some fun facts:
Moreover, three lines can intersect in the following 5 ways:
While discussing the problem, we refer those as "川", "囧", "XD", "卄" and "△". Chinese characters are interesting :)