BRAIN TEASERS

# Calculate the number 5660

NUMBERMANIA: Calculate the number 5660 using numbers [1, 9, 8, 2, 51, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania

### How many sheep do I have?

There once was a blonde who was very tired of blonde jokes and insults directed at her intelligence.

So, she cut and dyed her hair, got a make-over, got in her car, and began driving around in the country.

Suddenly, she came to a herd of sheep in the road. She stopped her car and went over to the shepherd who was tending to them.

"If I can guess the exact number of sheep here, will you let me have one?" she asked.

The shepherd, thinking this was a pretty safe bet, agreed.

"You have 171 sheep," said the blonde in triumph.

Surprised, the shepherd told her to pick out a sheep of her choice.

She looked around for a while and finally found one that she really liked.

She picked it up and was petting it when the shepherd walked over to her and asked, "if I can guess your real hair color, will you give me my sheep back?"

The blonde thought it was only fair to let him try. "You're a blonde! Now give me back my dog."

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### Robert M. Yerkes

Born 26 May 1876; died 3 Feb 1956 at age 79.Robert Mearns Yerkes was an American psychologist and a principal developer of comparative (animal) psychology in the U.S. In his book The Dancing Mouse (1908), he helped established the use of mice and rats as standard subjects for experiments in psychology. He also studied primates, publishing his results in 1929 in the classic book The Great Apes.
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