1. Please enter the missing figure: 4, 5, 8, 17, 44,
A. 80
B. 125
C. 112
D. 60
E. 84

Correct answer: B
Explanation: The difference between the numbers follows the series 1,3,9,27,81

2. Please enter the missing figure: 13, 57, 911, 1315, 1719
A. 2123
B. 1879
C. 3002
D. 5004
E. 1784

Correct answer: A
Explanation: All odd numbers beginning from one, in a series.

Also: Starting with 13, add 4 to each digit separately, and continue adding 4 to the result.