Find the 3 hidden mistakes tucked inside this living room puzzle. It’s a soothing yet challenging test to see how strong your focus and visual awareness really are.
"It's a disposable pipette system. The clear tubes are glass or plastic with markings for the volume inside. The orange/red ball is a hollow, collapsible ball with a hole over the pipette tip. The ...
Can you chip in? This year we’ve reached an extraordinary milestone: 1 trillion web pages preserved on the Wayback Machine. This makes us the largest public repository of internet history ever ...