Friday, 3 November 2017

DAY 453

Credit: Zack Guido
OF COURSE
Presented  by Will Shortz
on NPR Weekend Edition Sunday Puzzle
October 29, 2017

The equation 65 - 43 = 21 is wrong. The answer should be 22. But can you move two numbers in the equation to make a new equation that is correct? The answer remains a straightforward subtraction problem, no symbols are changed or moved, and no parentheses are needed.

Answer:

Move the 3 and the 2 to make them exponents:

65 - 4 (cubed) = 1 (squared) 

65 - 64             = 1 



Friday, 16 June 2017

DAY 452

LA Times Crossword
June 15, 2017
Brian Thomas

The four collections of letters below follow a certain pattern and are related. Can you determine what's going on?

X I F
O ST
URY

R I X
I  S T
TH Y

TFO
YIN
NER

HOT
EY I
NEG

HINTS:
#1: The letters in each set are scrambled.
#2: The shape of each set is a clue.

Answer:

The letters in each collection, unscrambled, spelled out:

SIXTY-FOUR
THIRTY-SIX
FORTY-NINE
EIGHTY-ONE - - - 3 x 3 letters - - - perfect squares



Friday, 9 June 2017

DAY 451

True or false: any score is possible in American football.

Answer:

True: A point after touchdown is 1 point and a safety is 2 points - making every odd or even number possible. (Joseph Appel)

Wednesday, 4 January 2017

DAY 450

Six sewers take six hours to sew six shirts. How many sewers will it take to sew 100 shirts in 60 hours?

Answer:

Ten sewers
Each sewer sews one shirt in six hours. 
In sixty hours one sewer could sew ten shirts.  

Credit: Abbie Salny
The SuperSmart SuperPuzzle Book

Tuesday, 1 November 2016

DAY 449

GO FORTH AND MULTIPLY
Credit: GAMES/World of Puzzles
October, 2016
Raymond Love

Can you figure out what A must be and what B must be in the multiplication problem below to make it valid? The answer is unique.

     AB
  x    A  
   BAA

Answer:

A = 8
B = 6

    86
 x   8 
  688


Monday, 26 September 2016

DAY 448

What do you think of when you see the numbers 36-24-36?

Answer:

The sides of an Isosceles triangle, of course. 

Credit:
Victor Fleming
BY THE NUMBERS 





Saturday, 3 September 2016

NOTE FROM JA:

I have been thinking about the problem of how many fifth Sundays there are in a year (DAY 356). If you are interested, please read my comments - posted on DAY 356. Thank you.