I studied in India 2012 for a short time. I met incredible smart and hardworking people. However, one thing that I found quite unnerving was that there is a tendency to always anwser yes if asked if one knows how to do something, even if thats not true. Sometimes a plain "I don't know" can be very helpful in achieving a goal. I can't count how many times I asked a rickshaw driver if he knew a certain place and he ans…
This is ABC of travelling in India. Never ask "is this the train to Pune"? Ask where the train is going instead. The answer to Y/N question is always yes in India, and that can mean anything between "I don't speak English" and "NO".
Don't ask "Did you finish task X". Ask "what did you do on task X?". What you see as finished and what the other person sees as finished might be separate things. Maybe you see 100% unit tested, reviewed and documented as finished, and the other person means feature complete, but untested, undocumented, not reviewed.
Open questions allow you to see what the other person understands. In some cases they might misunderstand your question entirely.