BRAIN TEASERS
Brain Teasers User Profile

Mandy Martin

rank
109
points
64
See full ranking list
short ranking list
107. Tony M 67
108. Lokanath Mishra 64
109. Mandy Martin 64
110. Hannah Wager 64
111. Mihajlo Mihajlo 63
last 3 solved tasks
Remove 4 letters from this sequence (WMEMBAREAUNE) to reveal a familiar English word.
If seven people meet each other and each shakes hands only once with each of the others, how many handshakes will there have been?
Look carefully caricature and guess the name of musician.

First dated printed arithmetic book

In 1478, the anonymous Arte dell'Abbaco(“The Art of the Abacus”), printed in Treviso, Italy had this publication date. It is the first dated printed book on arithmetic. The unknown author was likely a priest, and it was dedicated to some of his young friends who kept asking for it. The printer was probably Geradus de Lisa, dé Flandria. The 124-page text dealt with commercial applications of arithmetic, so the language was the local vernacular Venetian dialect, not the scholarly Latin used for the abstract studies of universities. The book teaches the four main operations, with numerous examples, and the concept of fractions (but not the as yet unknown decimals). He shows how to calculate the date of the new Moon. Although some pamphlets on Algorithmus are possibly older than this book, they are undated.«[Image: detail of a calculation shown in the book.]

A little boy was sitting outsi...

A little boy was sitting outside a store eating one snickers candy bar after another, when an older man walked up and said: "You shouldn't be eating so much candy, it'll rot your teeth, it's just bad for you to eat so much candy."
The little boy looked up and said: "My grandfather lived to be 95 years old."
The older man asked: "Oh? by eating snickers candy bars?"
The little boy said: "No... by minding his own business."
Jokes of the day - Daily updated jokes. New jokes every day.
Follow Brain Teasers on social networks
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.