Question: What is the missing number in the sequence: 2, 4, 8, 16, _____?

Options:

1. 20
2. 24
3. 32
4. 36

Correct Answer: 32

Solution:

The sequence doubles each time: 2, 4 (2*2), 8 (4*2), 16 (8*2), so the next number is 32 (16*2).