something that seems to contradict itself but is true
विरोधाभास
Usage
It is a paradox that a rich country has so many poor people.
'Less is more' is a famous paradox.
Common mistake
The two answers are paradox to each other.
The two answers contradict each other.
Paradox is a noun; for clashing answers, say contradict.
Remember: Paradox: two opposite ideas, both true.