What is X in the sequence 20, 10, 10, 15, 30, 75, X?

What is the 14th term of the sequence 14, 10, 6, 2,.... ?

The next term in the sequence 1, 3, 9, 15, 25, 35, 49, ….. will be

What is the sum of next two terms in the following sequence? 2, 5, 13, 29, ___, ___

The next number in the finite sequence 486, 324, 216, 144, … is

Which fraction comes next in the sequence? 1/2, 3/4, 5/8, 7/16, .......