What am I?
A comb.
A comb.
Football.
A mouse on vacation!
The pregnant lady’s baby
6
The series is spaced incorrectly. When the spacing is correct it becomes: 2 4 8 16 32 64 128 256, which is an obvious doubling-up series.
2
A rubber band.
5
Color green.
Waterfall.
If answer A would be correct, then answer B ("Answer A or B") would also be correct. If answer B would be correct, then answer C ("Answer B or C") would also be correct. This leads to the conclusion that if either answer A or answer B would be the correct answer, there are at least two correct answers. This contradicts with the statement "there is only one correct answer to this question". If answer C would be correct, then there are no contradictions.
Therefore, the solution is answer C.
LOL.
101 x 5 = 505 which looks like SOS,
567 x 2 = 01134 (put in calculator and turn upside down) looks like hello
101 x 7 = 707 turn upside down and it becomes LOL.