In how many ways can an examinee answer a set of ten true/false type questions?

A question paper on mathematics consists of 12 questions divided into 3 parts A,B and C, each containing 4 questions.In how many ways can an examinee answer 5questions selecting at least one from each part.

In a test paper first section contain 5 questions each with 4 choices and second sections contains 4 questions each with 3 choices . In how many different ways can the paper be answered if all the questions are attempted ?

In how many ways can 30 marks be allotted to 8 question if each question carries at least 2 marks?

In how many ways can 24 persons be seated round a table, if there are 13 sets?

In how many ways can 24 persons be seated round a table,if there are 13 sets?

Please calculate in how many ways can a set of five players be formed out of a total of ten players such that two particular players should be involved in each set?