BRAIN TEASERS

# MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (2, 5, 6, 18, 21, 22, 35, 38, 39, 85) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B+C.
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #magicsquare

### What Time Is It?

A man had been driving all night and by morning was still far from his destination. He decided park somewhere quiet so he could get an hour or two of sleep.

As luck would have it, the quiet place he chose happened to be on one of the city's major jogging routes. No sooner had he settled back to snooze when there came a knocking on his window. He looked out and saw a jogger running in place.

"Yes?"

"Excuse me, sir," the jogger said, "do you have the time?"

The man looked at the car clock and answered, "8:15."

The jogger said thanks and left. The man settled back again, and was just dozing off when there was another knock on the window and another

jogger.

"Excuse me, sir, do you have the time?"

"8:25!"

The jogger said thanks and left. With other joggers passing by it was only a matter of time before another one disturbed him.

To avoid the problem, he got out a pen and paper and put a sign in his window saying, "I do not know the time!"

Once again he settled back to sleep. He was just dozing off when there was another knock on the window.

"Sir, sir? It's 8:45!"

Found on https://forums.runnersworld.co.uk, posted on July 2003 by Wolfy forum member.

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### Roald Hoffmann

Born 18 Jul 1937. Polish-born American chemist, corecipient, with Fukui Kenichi of Japan, of the Nobel Prize for Chemistry in 1981 for their independent investigations of the mechanisms of chemical reactions. His work aims at theoretically anticipating the course of chemical reactions. It is based on quantum mechanics (the theory whose starting point is that the smallest building blocks of matter may be regarded both as particles and as waves), which attempts to explain how atoms behave. Orbital interaction and symmetry relations between molecules or parts of molecules are fundamental to this theory of conservation of orbital symmetry in chemical reactions.
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