バグダッドの大櫃の謎の英語

a paradoxical anecdote or a riddle that has no solution

My hints were lost upon him.

a fathomless mystery

He did not take the hint

I know what you would be at.

the mysterious presence of an evil power

I will unmask the ghost―expose the apparition.

At last I have solved the puzzle.

speak in riddles

to take the hint

unmask a spy

how it got out is a mystery

My hints were lost upon him.

a person who keeps his thoughts secret

a Japanese 'waka' poem that includes a riddle

a person of unknown character who has uncanny abilities

Don't leave the riddle.

He did not take the hint

I will give you a puzzle to guess.

The mystery continues to deepen.

the syllabic 'nl' in 'riddle'

I hinted that he must keep silent―hinted at his keeping silent.

became more and more haunted by the stupid riddle

to drop a hint―let fall a hint―throw out a hint

I can't figure out how to solve the puzzle.

to put a puzzle to one―propose a riddle to one

a riddle guessing game, called 'nazo-awase'

He is an enigmatical person―an enigma―a sphinx.

a game of solving riddles

I am mysterious.