Mr. Niederman has a gift for making puzzles that make a solver do a double (or triple) take — a theme that sneaks up on you, for example, or one with an extra layer of intricacy (or more!) like ...

Donald Trump comes to almost any public matter prepared to wage a war of words — and, as President Gustavo Petro of Colombia ...

I seem to have been courting trouble with my most recent challenge, which was to find a term for the “maniacs” on mopeds, ...