Question
How is B related to
L? Answer the questions based on the information given below. There are six members B, J, M, L, Y and Q in the family of three generations. Each of them is married. B is mother-in-law of M. J is father of L, who is not married to M. J is not in 1st generation. Y is not married to L. Q is a male member. Gender of B and L is same.Solution

Find the next term in the series:
4, 9, 19, 39, 79, ?
221, 100, 0, -81, ?
...√(10198 )× √(7220 )÷ 16.69 + 2010.375= ?
827, 820, 806, 785, 757, ?
7    8     ?     13     17     22    28
...76, 80, 89, 105, ?, 166
{(12√5 + 6√5 )} ×{(10√5 - 5√5 )} - 8² + 6² = ?
-1, 5, 23, 59, ?
12   18   31   51   ?   112
What will come in place of the question mark (?) in the following series?
17, 21, 30, 46, ?, 107