Number Sequence & Answers

1. Number Pattern: 2, 4, 8, 16, …

2. Missing Number: 5, 10, 20, 40, …

3. Odd One Out: 3, 5, 7, 11, 13, 17, 20

4. Number Riddle: I am a number. Double me and subtract 4, you get 16. What number am I?

5. Arithmetic Sequence: 7, 10, 13, 16, …

6. Sum Puzzle: 2, 5, 10, 17, 26, …