The GCHQ Puzzle Book: Perfect for anyone who likes a good headscratcher

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Eliminating those words whose 2 nd letter is a consonant (ALGAE, FJORD, KNIFE, ORGAN, UPSET) leaves: b) 8. The sequence is the number of letters in each word of ‘To be or not to be that is the question’. Question has 8 letters. b) Adding one S to each word forms a plural, adding a second S forms a non-plural: BRASS, CARESS, MILLIONAIRESS, NEEDLESS, PRINCESS, TIMELINESS They precede things you might find in an orchestra: ear DRUM, champagne FLUTE, shoe HORN, Bermuda TRIANGLE, ear TRUMPET and super CONDUCTOR.

Anagrams of birds: OCTAVE/ AVOCET, COATING/ COTINGA, ARMFUL/ FULMAR, HORMONE/ MOORHEN, HEAR/ RHEA, HIKERS/ SHRIKE, LATE/ TEALChampagne bottle sizes: SIXTEEN/ BALTHASAR, FOUR/ JEROBOAM, TWO/ MAGNUM, EIGHT/ METHUSELAH, TWENTY/ NEBUCHADNEZZAR, SIX/ REHOBOAM, TWELVE/ SALMANAZAR h) First 3 letters of a vegetable: ARTICHOKE, ASPARAGUS, BEETROOT, CABBAGE, CARROT, LEEK, LETTUCE, MARROW, PARSNIP, POTATO c) All are words when converted to hexadecimal: 10/ A, 190/ BE, 2766/ ACE, 57005/ DEAD, 11325150/ ACCEDE, 14613198/ DEFACE, 16435934/ FACADE

b) HELIPAD (for example). The symbols of the first 18 elements are spelled out by moving vertically and horizontally through the letters starting with H: First words of consecutive books of the New Testament (King James version), starting at St John’s Gospel. Next is the book of Hebrews, beginning with the word God.

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Liverpool. This can be succeeded by a letter in the NATO phonetic alphabet, the others can preceded by one. The sequence involves the first 5 letters: Alfa Romeo, Bravo Two Zero, Charlie Brown, Delta Force, Liverpool Echo. FIRM. Each word contains a 3-letter tree: FIRm, hELM, sOAK, wASH, but only in FIRM is the tree at the beginning. Synonyms of musical terms: UNINTENDED/ ACCIDENTAL, OBSTRUCT/ BAR, DEEP/ BASS, LEVEL/ FLAT, NORMAL/ NATURAL, ACUTE/ SHARP, THREEFOLD/ TREBLE Can be preceded by a creature: BEAR HUG, COW PARSLEY, HARE LIP, KANGAROO COURT, MONKEY SUIT, RABBIT PUNCH, ZEBRA CROSSING

j) First 3 letters of US States, reversed: BEN/NEBRASKA, LAC/CALIFORNIA, LED/DELAWARE, NET/TENNESSEE, NEP/PENNSYLVANIA, NIM/MINNESOTA RAM/MARYLAND, REV/VERMONT, SAW/WASHINGTON, SEW/WEST VIRGINIA a) Anagrams: AGREES/GREASE, ASPIRE/PRAISE, CHASTE/SACHET, ENLIST/SILENT, ENTRAP/PARENT, LATTER/RATTLE, NEURAL/UNREAL, PALEST/STAPLE, PRIEST/STRIPE, c) IRON/FE and LEAD/PB are the only elements where the Scrabble score of the symbol exceeds that of the name. First/last word in the title of a Shakespeare play: ALL’S Well That Ends WELL, ANTHONY and CLEOPATRA, AS You Like IT, LOVE’S Labours LOST, MEASURE for MEASURE, MUCH Ado About NOTHING, KING JOHN, TWELFTH NIGHT or 3435. These are the number of letters in the words in the title of New Zealand’s national anthems, ‘God Defend New Zealand’ and ‘God Save The Queen’. The others are Australia: ‘Advance Australia Fair’; USA: ‘The Star-Spangled Banner’; Canada: ‘O Canada’; UK: ‘God Save The Queen’.A. The pairs are Premier League clubs and their grounds: Chelsea=Stamford Bridge, Crystal Palace=Selhurst Park, Everton=Goodison Park, Manchester United=Old Trafford, Tottenham Hotspur=White Hart Lane and Liverpool=Anfield. a) One letter can be changed to form the surname of a US President: HARRISON, PO LK, PIERCE, G RANT, HA YES, TA FT, HOO VER Falcons (Atlanta); Celtics (Boston), Predators (Nashville); Colts (Indianapolis); Kings (Sacramento); Broncos (Denver); Bruins (Providence). g) BOSBOK: similarly, but with the appropriate style of moving, KNIGHT, ROOK, KING and BISHOP are spelled out Finished (D over); ‘Town’ (Harris burg); Crossing (Hart ford), String (Con cord); Castle (Frank fort); Warble (Lan sing); Opera (Hono lulu).