Look for a pattern

"Look at the series, determine the pattern, and find the value of the unknown number!"



1. 0, 1, 3, 6, 10, 15, x
19
23
22
21


2. 1, 4, 27, 256, x
729
3125
81
125


3. 1, 1, 2, 3, 5, 8, 13, 21, x
30
29
26
34

4. 1, 2, 4, 8, 16, 32, 64, 128, x
Answer: (A 3-digit number.)

5. 1, 4, 6, 9, 11, 14, 16, 19, x
22
21
19
24


6. 3, 1, 2, 0, 1, -1, x
Answer: (A single-digit whole number.)

GOOD LUCK