Which of the following numbers will replace the question mark (?) in the given series?

67, 78, 71, 82, 75, 86, ?

If 16 : X :: X: 196, find the positive value of x?

Which of the following numbers will replace the question mark (?) in the given series?

5103, 1701, 567, ?, 63, 21

Which of the following numbers will replace the question mark (?) in the given series?
 8, 16,13, ?, 47, 282

Find the value of p, when p= ( 5÷ 6 ) of 54 - 40 + 10 - 41 - 22

Select the number that will replace the question mark (?) in the given number series.
 146, 90, 56, 34, 22, ?

Select the number from among the given options that can replace the question mark (?) in the following series.
728, 717, 695, 662, 618, ?

Direction: What value will come in place of the question mark (?) in the following question?

1, ?, 3, 15, 105, 945