Deleted last Q as it had an error in the OP, but these are correct
Henrietta, a hippo at Conundrum zoo, turns the scales at two-thirds of her own weight, plus two-thirds of a ton.
How heavy is Henrietta?
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The Conundrom Corners town hall clock has 4 faces. At a certain hour yesturday, the times those faces showed were 4;30.....3....7.....and 6.
"One clock was correct" said the mayor.
"Another is only half as wrong as the clock which is three-quarters as wrong as the clock which (when you know the true time) appears to be fastest."
Which clock was right?