Paradoxical odds? (5)
I believe the answer is:
evens
'odds?' is the definition.
(I've seen this in other clues)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for evens that I've seen before include "50-50 chance" , "Level betting" , "Levels - odds" , "Equal stakes on both sides in bet" , "less likely than 27 [ODDS-ON]" .)