BRAIN TEASERS

enter your answer and press button OK

Find number abc

If 7a7bb - 7aab8 = bc7 find number abc. Multiple solutions may exist.

Correct answers: 42

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math

Register with your Google Account and start collecting points.

Check your ranking on list.

Garbage day

A Father is asked by his friend, "Has your son decided what he wants to be when he grows up?"

"Yes, he wants to be a garbage collector," he replies.

To this his friend responds "Strange ambition to have for a career."

"Well, he thinks that garbage collectors only work on Tuesdays!"

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...

Calvin Blackman Bridges

Died 27 Dec 1938 at age 49 (born 11 Jan 1889).American geneticist who advanced understanding of the role of chromosomes in heredity using the fruit fly, Drosophila melanogaster. He began, in 1910, as a laboratory assistant for Thomas Hunt Morgan tracking how observable changes in its chromosomes led to inherited variations. Bridges used natural "mistakes" in sex chromosome segregation to show that an improper number of chromosomes produced abnormal fruit flies. Such "mistakes," called nondisjunction because chromosomes are not properly disjoined, result in gametes with either an extra copy of a sex chromosome or none at all. He created a nomenclature system for naming fly mutants. He correlated Drosophila genes with banding patterns in salivary chromosomes.«[Image right: fruit fly (source) ]

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.