There are sixty cup on a table if one fall down then how many remain

This is actually a trick question. You would assume that because one fell it would be 59, however the question never defines what has fallen. Alternatively others may think that it would be 60 since the total number never changes.

However if read verbally it would sound like Six - Tea cups meaning if one fell, five would remain!

There would be 5 tea cups remaining on the table