The sole founder of SpaceX, Elon Musk has a rather peculiar riddle he likes to ask when he is interviewing potentially new employees.
When you realise what the answer is you won’t believe you didn’t get it sooner.
The largest known prime number, newly discovered, is almost five million digits longer than the previous record-holder. How they found it?
These days, teachers want their students to become problem solvers. And so if you happen to answer a math question correctly but take a different route to get there (ie: 5+5+5 instead of 3+3+3+3+3), your answer will be graded incorrectly.
Can you solve this hat riddle?