Fill in the missing number: 10, 30, 60, 01,__, 12
Use a bit of lateral thinking.
Also, I do know the answer. Just giving the question as a teaser.
This answer is silly but in this sequence, there exists 4 zeroes and 3 ones. So it follows, there should be 2 twos, 1 three, 0 fours, -1 five, and -2 sixes. But if you take absolute value, we have 2 sixes. Since there is only one two and one six already, the missing bit is 26. It cannot be 62 because let's say, we must have one of the same digits in whatever pair, reversed. Again, just a silly observation.