It looks like a simple math sum but has left people scratching their heads... can you solve it?

It looks simple at first, but this math problem has the internet stumped. Don't be fooled - it demands more brainpower than ...
National Security Journal on MSNOpinion

‘New’ Mach 4 MiG-41 6th Generation Stealth Fighter Has Warning for U.S. Air Force

Russia’s ‘Mach 4’ Stealth Fighter That Will Never Fly -Russia’s MiG-41, also known as PAK DP, is advertised as a ...