Start with a number larger than 0, square it, add 4, double, take away 3, times 4 and finally subtract the original number.
If you were now left with 20, what number did you start with?
[Ref: ZWXM] © Kevin Stone
Direct Link: www.brainbashers.com?ZWXM
Hint: A little algebra might help.
If we convert the question to algebra we have:
((n^2 + 4) x 2 - 3) x 4 - n = 20
Expanding the brackets and simplifying gives:
(2n^2 + 8 - 3) x 4 - n = 20
(2n^2 + 5) x 4 - n = 20
8n^2 + 20 - n = 20
8n^2 - n = 0
8n = 1
n = 1/8
My trustworthy BrainBashers electronic world atlas has been up to its usual tricks again.
I wanted to know the population of some major countries and here are the results:
How many people were listed as living in Tibet?
[Ref: ZGGP] © Kevin Stone
Direct Link: www.brainbashers.com?ZGGP
Hint: Vowels and consonants are worth different amounts.
Answer: 270,000 people.
Each vowel is worth 3 and each consonant is worth 7, these are added together and then multiplied by 10000. Therefore, Tibet has 2v + 3c = 2 * 3 + 3 * 7 = 27, therefore 270,000 people.
Place JANUARY, FEBRUARY, MARCH, APRIL, MAY, JUNE, JULY, AUGUST, SEPTEMBER, OCTOBER, NOVEMBER, DECEMBER, into the grid. The sequence will snake around, but cannot go diagonally, nor cross itself.
[Ref: ZZVX] © Cihan Altay
Direct Link: www.brainbashers.com?ZZVX
Can you name four days which...
...start with the letter "T"?
Direct Link: www.brainbashers.com?ZHIM
Hint: Thanksgiving isn't one of the answers.
Tuesday, Thursday, today, and tomorrow!