Our today’s optical illusion challenges viewers to spot the hidden "33" among a sea of red "3"s and "5"s. Only 1 per cent succeed without hints! This tricky brain teaser tests visual sharpness and ...

Visual illusions trick our brains into seeing non-existent things. A challenge asks if you can spot a hidden third cat in an ...

Mia Yilin's optical illusion personality test on TikTok reveals hidden pressures based on whether you first see leaves or a ...