This tricky optical illusion challenges you to spot the number 1 hidden among rows of 7s in just five seconds, a playful yet ...
2don MSN
Test your skills: Only a person who is excellent with numbers can spot '95' within 13 seconds
A viral optical illusion challenges viewers to find the number 95 hidden among rows of 65s within 13 seconds. This tricky puzzle tests both speed and ...
I have recently written and released a calculator which handles very large numbers (up to 1075 digits). I'll provide a link below, in case anyone wants context on this question. Actually, someone else ...
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