Complete the following number series.
24, 60, 120, 210___

Select the number that can replace the question mark (?) in the following series.
2807, 1400, 697, ?, 171, 84

7, 18, 40…….?....117, 172

Which group of letters will complete the given letter series by sequentially placing the blank space?
M_OMMN_M_NOMMN_M

Which of the following numbers will replace the question mark in the given series?
3, 7, 22, 89 , ? 

Find the missing (?) in the series 13, 14, 18, 27, ?, 68, 104,?

Select the number from among the given options that can replace the question mark (?) in the following series. 

5, 18, 70, 278, ?

What number comes next in the series?
1, 2, 3, 5, 8, ___