India, March 23 -- Mathematical brain teasers have become a favourite pastime for puzzle enthusiasts, challenging both logical reasoning and problem-solving skills. These puzzles not only test mathematical aptitude but also encourage lateral thinking. If you're a fan of mind-bending challenges, a new teaser is making waves on social media, leaving netizens scratching their heads.

(Also read: You'll be known as a true maths whiz if you solve this mind-boggling number puzzle)

A brain teaser shared on X (formerly Twitter) by the account Brain Quiz has stumped users with its unusual pattern. The puzzle reads:

"1+4=5, 2+5=12, 3+6=21, 5+8=?, 97% Will fail this test."

The unconventional equations sparked a debate, with many struggling to ide...