BRAIN TEASERS

enter your answer and press button OK

Find number abc

If bc17a - 6a575 = 255cb find number abc. Multiple solutions may exist.

Correct answers: 18

The first user who solved this task is Nasrin 24 T.

#brainteasers #math

Register with your Google Account and start collecting points.

Check your ranking on list.

Philosophy Exam

A college student in a philosophy class was taking his first examination.
On the paper there was a single line which simply said: "Is this a question?" - Discuss.
After a short time he wrote: "If that is a question, then this is an answer."
The student received an "A" on the exam.
(True story)

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...

Annie Jump Cannon

Died 13 Apr 1941 at age 77 (born 11 Dec 1863). American, deaf astronomer who specialized in the classification of stellar spectra. In 1896 she was hired at the Harvard College Observatory, remaining there for her entire career. The Harvard spectral classification system had been first developed by Edward C. Pickering, Director of the Observatory, around the turn of the century using objective prism spectra taken on improved photographic plates. In conjunction with Pickering Cannon was to further develop, refine, and implement the Harvard system. She reorganized the classification of stars in terms of surface temperature in spectral classes O, B, A, F, G, K, M, and catalogued over 225,000 stars for the monumental Henry Draper Catalogue of stellar spectra, (1918-24).

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.