IQ number series test

What number comes in the blank in each sequence below?

1. 4, 8, 16, 32, 64, _______Answer:

2. 2, 3, 5, 7, 11, 13, 17, 19, _______Answer: 

3. 1, 3, 6, 10, 15, _______Answer: 


4. 500, 475, 425, 350, 250, _______Answer: 

5. 200, 196, 180, 116, _______Answer: 

6. 987, 878, _______, 660, 551, 442Answer: 

7. 213, 426, _______, 852, 1065, 1278Answer: 

8. 144, 121, 100, _______, 64, 49Answer: 

9. 8, 27, 64, _______, 216, 343Answer: 

10. 2, 3, 4, 12, 6, 23, 8, 36, 10, _______Answer: 

11. 3, 10, 20, 27, _______, 44Answer: 

12. 2, 7, 11, 16, _______, 25Answer: 

13. _______, 0.99, 9.9, 99, 990, 9900Answer: 

14. 2.5, 3.75, _______, 8.4375, 12.65625Answer: 

15. 243, 162, 108, 72, _______, 32Answer: 

16. 1/24, _______, 7/18, 10/15, 13/12, 16/9Answer: 

17. 2, 6, 14, _______, 62, 126Answer

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