How does 2581=2

Some of the sequence problems have crazy solutions! Hint: 3 letters, beginning with R Comments: Note: comments may be edited and will not appear until approved. Puzzles by Category Hard Puzzles Logic Puzzles Language Puzzles Brain Teasers The Brain Teasers was formed in with the aim of providing a good collection of riddles, brain teasers and other challenging problems for you to solve! Highest rated Solved by preschoolers in 5 mins 3.

Recently added Moving silently from hill to hill Horsefood Cities but no Houses What are the next 3 letters What disappears as soon as you say it's name? Animals going towards the river Bat and Ball Who am I? You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account.

Notify me of new comments via email. Notify me of new posts via email. Menu Skip to content. Home About. Thus, one can solve it by linear regression. Why so complicated? Share this: Twitter Facebook.

Like this: Like Loading This problem can be solved by pre-school children in minutes, by programer — in 1 hour, by people with higher education … well, check it yourself! The answer has to do with how many circles are in each number. So the number 8 has two circles in its shape so it counts as two.

And 0 is one big circle, so it counts as 1. What bugged me was how might I solve this if the mapping of values was not based on shape. So how could I program a computer to solve this puzzle? So how can I refactor the problem and data into a trivial OLS?