confusing or baffling

a puzzling answer.

the skill or pastime of constructing or working crossword or other puzzles.

adjective

comprehendible , intelligible , understandable

adjective

abstruse , ambiguous , baffling , bewildering , beyond one , difficult , enigmatic , hard , incomprehensible , inexplicable , involved , knotty , labyrinthine , misleading , mystifying , obscure , perplexing , surprising , unaccountable , unclear , unfathomable , arcane , cabalistic , cryptic , mystic , mystical , occult , complicated , confusing , enigmatical , inscrutable , intricate , mysterious