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W _ S
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W _ D N _ S D _ Y .
" W H _ N
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L _ T
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( A )
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M _ _ N _ N G
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W _ D N _ S D _ Y Clue
IT WAS SPOKEN ON WEDNESDAY. "WHEN THE DAY AFTER TOMORROW BECOMES YESTERDAY", LET THE DAY BE (A). LET "TWO DAYS AFTER THAT DAY" BE (B). (A) AND (B) ARE TWO DAYS APART AND EQUALLY FAR FROM SUNDAY, SO THEY MUST BE SATURDAY AND MONDAY, MEANING THE ORIGINAL DAY WAS WEDNESDAY TODAY IS FRIDAY. THREE DAYS BEFORE WEDNESDAY IS SUNDAY. IF THE DAY AFTER TOMORROW IS SUNDAY, THEN TODAY IS FRIDAY SUNDAY. WHEN THE DAY AFTER TOMORROW IS YESTERDAY, TODAY WILL BE THREE DAYS HENCE, JUST AS WHEN THE DAY BEFORE YESTERDAY WAS TOMORROW CARRIES US BACK THREE DAYS FROM NOW, WHICH MUST BE SUNDAY, TO BE MIDWAY BETWEEN THE TWO "TODAYS". ALTERNATIVELY, WE CAN REPHRASE THE RIDDLE TO: IN 3 DAYS WE WILL BE AS FAR FROM SUNDAY AS WE WERE FROM SUNDAY 3 DAYS AGO SUNDAY IS THE ONLY DAY THAT SATISFIES THAT THEY ARGUED ON A SUNDAY. THE TABLE BELOW SUMMARISES THE EVENT. 'X' INDICATE THE POSSIBLE DAYS IF THAT PERSON'S STATEMENT IS TRUE. THE ONLY COLUMN WITH A SINGLE 'X' IS ON SUNDAY, THEREFORE D IS THE ONLY PERSON WHO IS CORRECT. DAY / PERSONMONTUEWEDTHURFRISATSUN AX BX CX DXXXX EX FX GXXXXXX