Ask her which way goes to her village.
explanation:
If she belongs to BADA gaon then she will always point towards chotta gaon. and if she belongs to chotta gaon then obviously she is true.
hope it solves.
vj bhai...It's pity that u still didn't get it. Vijay Deswal explained it well .
apnaa dimmag naa laawan ge tae saare jawaab sahi laagaenge...eb chahe pity karr layo...ya P.T. karr layo(for better mental state..)