BRAIN TEASERS

enter your answer and press button OK

Find number abc

If b3cb3 - b0839 = a9a4 find number abc. Multiple solutions may exist.

Correct answers: 70

The first user who solved this task is Donya Sayah30.

#brainteasers #math

Register with your Google Account and start collecting points.

Check your ranking on list.

Trouble Sleeping

The woman seated herself in the psychiatrists office. "What seems to be the problem?" the doctor asked.
"Well, I, uh," she stammered. "I think I, uh, might be a nymphomaniac."
"I see," he said. "I can help you, but I must advise you that my fee is $80 an hour."
"That's not bad," she replied. "How much for all night?"

Jokes of the day - Daily updated jokes. New jokes every day.

Follow Brain Teasers on social networks

Brain Teasers

puzzles, riddles, mathematical problems, mastermind, cinemania...

Heinrich Daniel Ruhmkorff

Born 15 Jan 1803; died 20 Dec 1877 at age 74.German mechanic, instrument maker and inventor whodevised the Ruhmkorff coil, his version of the induction coil (after Nicholas Joseph Callan's earlier invention of 1836). Ruhmkorff's induction coil could produce sparks over 1 ft (30 cm) in length, and became popular for energizing discharge tubes, especially those for generating X-rays (discovered by Wilhelm Röntgen, on 8 Nov 1895). The device uses a primary coil and iron core concentric with a secondary coil with a large number of turns. By using a contact breaker giving abrupt and rapid interruptions in the primary coil current, a concentrated, changing magnetic field produced a high voltage in the secondary coil. He also invented a thermo-electric battery in 1844.«

This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.