A quandary is a difficult situation in which you cannot decide what to do. You can see more than one path, but none of them looks good, or you cannot tell which is better. English speakers usually put you in it: she is in a quandary about whether to stay or leave. It is a grown-up, slightly written word — you will find it in books and newspapers more than in chat between friends. In casual talk people are more likely to say they are stuck, they cannot decide, or they don't know what to do. It sits near dilemma. Though actually, dilemma once meant a choice between exactly two bad options; nowadays people use both words loosely for any awkward bind, and only fussy teachers still keep them apart.