Every Wednesday the members of Think Quest team 23678 will post a new problem. The one who sends us the right answer first will get a cash prize provided by the members of Think Quest Team 23678. The money will be sent through mail. The cash prize differs according to its level of question. Below is a table of the prizes given according to its level. Level Prize Difficulty 1 $ 1 Very Easy 2 $ 2 Easy 3 $ 3 Medium 4 $ 4 Hard 5 $ 5 Very Hard Anybody can take the quiz but guessing is not permitted. You cannot write the answer only. You must write how you derived that answer. Explain how you got that answer. This requires thinking and mathematical reasoning, and that's our purposes for setting up this quiz section. If anybody sends us the right answer, then the answer will be posted at the end of each week. But if nobody sends us the right answer, the answer will not be posted and the same question might be used in the future.