Bet you can’t spot the missing number in this tricky sequence in under 15 seconds!
Today’s challenge is a thrilling number sequence puzzle. Your task, should you choose to accept it, is to find the missing number in this logical sequence: 6, 18, 15, 45, 42, ?. You have a maximum of 15 seconds to solve it. The sequence is displayed in the picture below. Do you think you can crack it? … Read more



















