THIS mind-boggling optical illusion has puzzle fanatics stumped and struggling to find the answer - but do you have what it takes? If you can spot the five differences in these posters appearing in ...
Bronchitis and pneumonia can cause similar symptoms. But while bronchitis is an infection of the bronchial tubes, pneumonia is an infection in the alveoli.
The first spot-the-difference puzzles appeared in the 1970s in puzzle magazines, where a famous painting would be presented alongside a slightly altered version, challenging readers to find the ...