This month's quiz coincides with clock-change weekend, where we have to make a 1 hour time difference.

Taking the word 'CLOCK', change one letter to make a new word. You can change the first C, the L, the O, the second C or the K. How many new words can you make ? You cannot change the order of the 4 letters you don't change.

 There are 10 to find, most in everyday English (one is obscure). Please note one of the letters on CLOCK cannot be changed to make a new word.

Now repeat the puzzle with the word 'TIME'. Again change one letter to make a valid word.This time there are 15 words to find, including some obscure ones. Again, one of the letters cannot be changed to make a valid word.

Repeat a third time with the word HOUR. This time there are 14 words, again some obscure, and again one of the letters cannot be changed to make a word.

Answers below

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CLOCK

BLOCK FLOCK

CHOCK CROCK

CLACK CLECK CLICK CLUCK

CLOAK CLONK

TIME

DIME LIME MIME RIME

TAME TEME TOME

TICE TIDE TIGE TIKE TILE TINE TIRE TITE

HOUR

COUR DOUR FOUR JOUR LOUR POUR SOUR TOUR YOUR

HOAR HOER HOOR

HOUF HOUT