There are several books on a bookshelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?
Common Wrong Answers
“10”
This guess assumes there is one additional book beyond the counted positions, but it miscounts the total by not recognizing that the same book being counted from both sides creates a shared position.
“8”
This guess incorrectly assumes that the total number of books is simply the sum of positions without considering that the 4th from the left and 6th from the right overlap.
“7”
This guess fails to account for the positions correctly, mistakenly thinking that the book is positioned such that there are fewer books on the shelf than there actually are.
Similar Riddles
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Three matches are sitting on a table. Without adding another make the three matches four. You are not allowed to break any of the matches.
1203=1 4566=2 8898=7 4566=2 5464=1 7774=0 4500=