Is it true that 呢 can mean "WHERE"??? If so, then what is the difference between 呢 and 哪儿??? I've seen those sentences and they made me wonder:
"我的杯子在哪儿? - where is my cup?" and "我的杯子呢? - where is my cup?"
The dictionary said that 呢 means "particle indicating that a previously asked question is to be applied to the preceding word ("What about ...?", "And ...?"); particle for inquiring about location ("Where is ...?"); particle signaling a pause, to emphasize the preceding words and allow the listener time to take them on board ("ok?", "are you with me?"); (at the end of a declarative sentence) particle indicating continuation of a state or action; particle indicating strong affirmation".