Using exactly four straight lines, without taking your pen off the paper, can you join all nine dots? You are not allowed to retrace your path.
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Hint: You can start in the top left corner.
What number comes next in this sequence:
15 20 20 6 6 19 19 5 14 ==?==
[Ref: ZOSU] © Kevin Stone
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Hint: The sequence is related to 1, 2, 3, 4.
Each term's initial letter position in the alphabet:
1 >> One >> O >> 15th letter.
4 >> Four >> F >> 6th letter.
20 >> Ten >> T >> 20th letter.
Place letters into the grid such that every row, column, and 2x2 block has letters (in any order) that form a common word.
Each letter is only used once, and no letter is repeated in the rows/cols/blocks.
Letters allowed: S H O W E R S.
[Ref: ZVAR] © Alan Stillson and Frank Longo.
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Across: FATE, WASH, RUNG, DOES
Down : GASH, TOWN, DUES, FARE
Boxes : WHAT, SAFE, SONG, RUDE
Note : Other anagrams of these words are OK as long as they don't change the answer grid.
If 7/28 of 64 is 16 and 9/12 of 100 is 75 and 3/9 of 33 is 11, what is 5/15 of 45?
[Ref: ZYTT] © Kevin Stone
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Hint: This is easier than it might first appear.
Using normal mathematics!