[OK] Privacy Policy  -  Terms & Conditions  -  See DetailsWe use cookies to personalise content and ads. We also share information about your use of our site with our advertising partners who may combine it with other information you've provided to them or they've collected from your use of their services.

Puzzle Details

I was recently given a new watch for my birthday.

However, as usual with my presents, it was quite useless as it loses 6 minutes every hour.

I set it using my friend's accurate watch at midnight and it now shows 10.39am.

I know that the watch stopped 21 minutes ago so what is the correct time now?

Since the watch is losing 6 minutes every hour, for every real hour that has passed, the watch will only show 54 minutes (i.e. for every 54 clock minutes, 60 real minutes have passed)

Since the watch shows 10:39am we know:

10:39am = (10 x 60) + 39 = 639 watch minutes

for every 54 watch minutes, 60 real minutes have passed:

(639 ÷ 54) x 60 = 710 real minutes

and converting this to hours:

710 minutes = 11 hours 50 minutes

the watch stopped 21 minutes ago, so the current time is:

12.11pm.

Our Favourite Illusions

 Shadow Illusion Are the squares A and B the same colour? Spinning Dancer Which way is the dancer spinning? Impossible Waterfall? Is the water flowing uphill in this impossible waterfall? The Butterfly A colourful butterfly?
 Duck Or Rabbit? Is this a duck or a rabbit? Hidden Faces Can you find his three daughters as well? Blind Spot An amazing demonstration of your blind spot. Impossible Prongs? Impossible prongs?
 What Am I? Can you tell what this is a picture of? Who Turned To? Who is missing? Same Eyes? Are her eyes the same colour? Parallel Cafe Wall Lines? Are the horizontal lines parallel?