Ask Mar­i­lyn

Albuquerque Journal - Parade - - Lively Mobile - By Mar­i­lyn vos Sa­vant —David Hayes, Fort Laud­erdale, Fla. —Scott Clark, Fort Wal­ton Beach, Fla.

What four-digit num­ber, when mul­ti­plied by four, equals the original num­ber with its dig­its in re­v­erse or­der? The chal­lenge is to solve this puz­zle only with rea­son­ing, not with math skills. Ah, this is a lit­tle gem, readers. You can solve it with pure logic. (And maybe a bit of pa­tience.) The an­swer ap­pears at the end of the col­umn.

Our area has ponds that hold storm water runoff, and they’re mostly dry un­til it rains. Once they fill with water, lit­tle fish can be seen swim­ming around. How do they get there? Peo­ple ev­ery­where are amazed by the seem­ingly mag­i­cal ap­pear­ance of fish in ponds that never held them (maybe). How do they get there? Some­times they’re in­tro­duced by eggs or are inadvertently car­ried by wa­ter­fowl that land on the water. Heavy rains that wash water from nearby bod­ies of water may do the same. And in ar­eas with reg­u­lar droughts, you may find fish called mud­min­nows (not ac­tu­ally min­nows), which bur­row into the mud and be­come dor­mant un­til the next rain fills up their pools again.

Send ques­tions to mar­i­lyn pa­rade.com An­swer:

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