Puzzle Details

A hen and a half will lay an egg and a half in a day and a half.

How many eggs would six hens lay at the same rate in six days?

We are told that:

1.5 hens will lay 1.5 eggs in 1.5 days.

We can double the chickens (which doubles the eggs):

3 hens will lay 3 eggs in 1.5 days.

We can double the chickens again:

6 hens will lay 6 eggs in 1.5 days.

We can now multiply the number of days by 4 (which multiplies the number of eggs by 4).

Therefore 6 hens will lay 24 eggs in a 6 days.

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?