5 Plus 5 Plus 5
Here a cute little puzzle: look at this equation

and make it correct by only adding one straight stroke (and it must stay an equation
.
[If you are really desperate, you find the solution linked here.]
Here a cute little puzzle: look at this equation

and make it correct by only adding one straight stroke (and it must stay an equation
.
[If you are really desperate, you find the solution linked here.]