Twelve flags stand equidistant along the track at the stadium. The runners start at the first flag. A runner reaches the eighth flag 8 seconds after he starts. If he runs at an even speed, how many seconds does he need altogether to reach the twelfth flag?
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Roll Them Out
In a long, narrow chute there are 8 balls: 4 black ones on the left, and 4 white ones-slightly larger-on the right. In the middle of the chute there is a small niche that can hold 1 ball of either color. The chute’s right end has an opening large enough for a black but not a white ball.
Roll all the black balls out of the chute. You can’t pick them up from the chute.
Riddle AnswerThree Equal Squares
You have 8 small matches, 4 of which are half the length of the other 4. Make three equal squares out of the 8 matches.
Riddle Answer10 Chairs 4 Walls
In a rectangular dance hall, how do you place 10 chairs along the walls so that there are an equal number of chairs along each wall?
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