Optical illusions test your ability to perceive, interpret, and solve visual puzzles under time pressure. This process ...

But according to Trent, the coffee cup test is a good indicator of character, adding that only five to 10 per cent of interviewees have never offered to return their empty coffee cup to the kitchen.

We know how tempting it can be to sip that first cup of joe shortly after you wake up in the morning. But drinking coffee on an empty stomach could cause some unwanted side effects-namely ...