Below is a simple logic question. Reply the answer to the question in the comments. If you believe the answer is already there upvote the person who gave the answer. I will post my answer (if its not answered later in the day)
There are 8 balls all have exactly the same specs but one weighs slightly less than the others.
There is noway of knowing which one weighs less without using a scale.
The scale is a balance scale the old kind. Putting different weight on one side compared to the other will tip the scale.
Using the scale only twice what is the algorithm to find the ball that weighs less than all the others?