Here are some hints (if you could call them hints). The hints here are in random order, four of the hints are the actual answer, and to make it more interesting, there is one hint that isn't used.
6
86 times this answer equals the sum of all the other answers that have a number
Twice the answer for another question
One less than the number of the question
One more than the number of the question
10 less than one of the other answers
70
no
maybe
The same as the right hand digit for 2 of the other answers
yes
The answer is the same as the number of the question