Happy Halloween! Last week I described how @jbrownridge had sent me this lovely puzzle….
If you choose an answer to this question at random, what is the chance that you will be correct?
a) 25%
b) 50%
c) 60%
d) 25%
If you have not tried to solve it, have a go now. For everyone else, the answer (kinda) is after the break. (more…)
@jbrownridge sent me this lovely puzzle yesterday….
If you choose an answer to this question at random, what is the chance that you will be correct?
a) 25%
b) 50%
c) 60%
d) 25%
As ever, please do NOT post your answers, but do say if you think you have solved the puzzle and how long it took. Solution on Monday.
I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for the Kindle (UK here and USA here) and on the iBookstore (UK here in the USA here). You can try 101 of the puzzles for free here.
This is a wonderful, wonderful illusion. So simple. So effective. Enjoy.
Like it?
As it is almost Halloween, I thought it would be fun to put out a scary video clip. We created a binaural recording so that you have the impression the seance is actually happening around you. This only works if you have HEADPHONES on, so please go and get some and give it a try….
Scared?
The tone just keeps on going up and up….
10 points to the person who can provide the best explanation!
Last wee I posted this puzzle…..
Four heterosexual men and four heterosexual women are shipwrecked on a desert island.
If you have not tried to solve it, have a go now. For everyone else, the answer is after the break. (more…)
A test of your logical skills this week….
Four heterosexual men and four heterosexual women are shipwrecked on a desert island.
As ever, please do NOT post your answers, but do say if you think you have solved the puzzle and how long it took. Solution on Monday.
I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for the Kindle (UK here and USA here) and on the iBookstore (UK here in the USA here). You can try 101 of the puzzles for free here.
“Any sufficiently advanced technology is indistinguishable from magic” Arthur C Clarke
Prepare to be amazed…..
Can you tell the difference between technology and magic?
Following on from the video that I posted yesterday, @vidyut sent me this…..
The video caused a bit of a storm on Twitter, with some people saying that it was one of the most amazing things they had ever seen, and others thinking that the person who created it was sad for wasting so much time on a meaningless video.
So, let’s vote on it, what do you think? Amazing or sad?
First, tickets for the Edinburgh Secret Society’s Halloween event will go on sale at 10 a.m. today. Details here.
Second, David Molnar kindly brought my attention to ‘stick bombs’. I hadn’t seen these before, but it is a way of threading together flat sticks to create a structure that then explodes when you remove one stick. Here it is in action….
Do you like it? Ever tried it?
On Friday I posted this puzzle….
John and Erica live together and between the two of them have three chores to perform. The chores are (i) vacuuming the floors, (ii) mowing the lawn and (iii) feeding the baby. Each of the chores takes thirty minutes, and they only have 1 vacuum cleaner, 1 mower and 1 bottle of milk. What is the shortest amount of time in which John and Erica can complete the chores?
If you have not tried to solve it, have a go now. For everyone else the answer is after the break.
First, for those of you going to the Cheltenham Literary Festival, I am doing a joint event about the paranormal with writer A L Kennedy on Saturday. Details here.
OK, here is the puzzle.
John and Erica live together and between the two of them have three chores to perform. The chores are (i) vacuuming the floors, (ii) mowing the lawn and (iii) feeding the baby. Each of the chores takes thirty minutes, and they only have 1 vacuum cleaner, 1 mower and 1 bottle of milk. What is the shortest amount of time in which John and Erica can complete the chores?
As ever, please do NOT post your answers, but do say if you think you have solved the puzzle and how long it took. Solution on Monday.
I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for the Kindle (UK here and USA here) and on the iBookstore (UK here in the USA here). You can try 101 of the puzzles for free here.
@DavidMeadeLive sent me this lovely illusion. Can you see the baby?
I like it because I saw the baby’s face and then the rest popped out at me. Did you get the same experience?
Martin Doherty sent me this great cow-vase-face illusion the udder day…..
Like it?
