BRAIN TEASERS

enter your answer and press button OK

Find number abc

If 75ab8 - 1ac54 = 5c254 find number abc. Multiple solutions may exist.

Correct answers: 1

#brainteasers #math

Register with your Google Account and start collecting points.

Check your ranking on list.

A patient was waiting nervousl...

A patient was waiting nervously in the examination room of a famous specialist.
"So who did you see before coming to me?" asked the doctor.
"My General Practitioner."
"Your GP?" scoffed the doctor. "What a waste of time. Tell me, what sort of useless advice did he give you?"
"He told me to come and see you."

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...

African-American patents an ironing board

In 1892, a U.S. patent for a specialized “Ironing Board” was issued to the black American inventor, Sarah Boone, likely a former slave (No. 473,653). Her design featured a quite narrow padded board, curved to make it easier to iron sleeves. Numerous patents were issued before hers with similar titles. The first patent designated specifically as an “Ironing Table” was issued several decades earlier, in 1858, to W. Vandenburg and J. Harvey (No. 19,390). Unpatented styles evolved from long long before that, so no single inventor can be identified for the earliest ironing board. For example, J.H. Mallory's “Ironing Table,” patented 24 Oct 1871 (No. 120,296) more closely resembles today's adjustable-height, collapsible model.«

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.