I would ask:
If you are driving and take your number's worth of turns, (right or left, no >!>off-ramps or U-turns), will you get multiple turns to the same direction? This >will work because:
If their number is 1, they will say "no", for obvious reasons.
If their number is 2, they will say "maybe" or "I don't know", because with >!>!two turns, you could (where R = a right turn and L = a left turn) do: RL, LR, >!RR, or LL.
If their number is 3, they will say "yes." Possible turns are: RLL, RLR, RRR, >!RRL, LRR, LRL, LLR, LLL. All of these include multiples of the same direction.