Question

Can we cry underwater?

Answer 1

No, because when we cry we breathe out and in, and since we can't breathe underwater we would end up dying in the water. Unless you had a scuba headset then you can cry because you also have the ability to breathe.

Answer 2

No crying underwater is not possible because of 2 reasons. 
1) While crying there is a spasm of muscles , of that of the oesophagus (throat) and this would result in death of an individual if he/she is under water. 
2) The external fluid pressure will not permit the tear gland to secrete tears there by nullifying the possibility. 
Thus u cannot cry unre water.. 
of course except if u are wearing a goggle or u are in a submarine! :)