Find the right combination
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.Correct answers: 6
#brainteasers #mastermind

Efficiency Expert
An efficiency expert concluded his lecture with a note of caution. "You need to be careful about trying these techniques at home."
"Why?" asked somebody from the audience.
"I watched my wife's routine at dinner for years," the expert explained. "She made lots of trips between the refrigerator, stove, table and cabinets, often carrying a single item at a time.
One day I told her, 'Honey, why don't you try carrying several things at once?'
"Did it save time?" the guy in the audience asked.
"Actually, yes," replied the expert. "It used to take her 30 minutes to make dinner.
Now I do it in ten..."