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# At what time?

A plane flies from Athens to Brussels at maximum speed. Normally, flying at maximum speed would enable it to reach Brussels in four-fifths of the time that it takes to fly there at cruising speed. On this occasion, however, the velocity of a favorable wind enables it to get there in only half the time it would normally take at maximum speed. On the return journey, it leaves Brussels at 1 p.m. Ignoring time zones, and encountering the same velocity and direction of wind, at what time will the plane arrive back at Athens?

Never! Most of the information given is irrelevant. If the tails wind doubled its speed going, its velocity must have equaled that of the plane. On the way back, such a wind would effectively reduce the speed of the plane to zero.

## In how many minutes?

You have accidentally left out the plug and are attempting to fill the bath with both 2 taps full on. The hot tap takes 6 minutes to fill the bath, the cold tap takes 4 minutes, and the water empties through the plug hole in 12 minutes. In how many minutes will the...

## How many kids?

Sometimes it helps to be bigger--especially when you're only four or five years old. The children were making candy apples for the Halloween party, eating as they worked. The bigger kids managed to gobble up seven apples apiece (and got stomachaches for their pains),...