Directions (Q.1-5) : What will come in place of the question mark (?) in the following number series?
1. 12, 14, 17, 13, 8, 14, 21, 13, 4, ? (1)
(1) 14
(2) 12
(3) 16
(4) 20
(5) None of these
2. 4, 6, 12, 30, 90, 315, ? (3)
(1) 1180
(2) 1160
(3) 1260
(4) 1240
(5) None of these
3. 25, 16, ?, 4, 1 (3)
(1) 3
(2) 6
(3) 9
(4) 7
(5) None of these
4. 15, 12, 17, 10, ?, 8, 25, 6 (3)
(1) 27
(2) 23
(3) 21
(4) 19
(5) None of these
5. 1, ?, 27, 64, 125 (1)
(1) 8
(2) 10
(3) 12
(4) 14
(5) None of these