Answer:
Functional fixedness
Explanation:
You are given a candle, a box of matches, a few thumbtacks, and a very short piece of string with the instruction to mount the candle on a wall. It never occurs to you that you could empty the matchbox and tack it to the wall as a platform for the candle because of functional fixedness. Functional fixedness is a cognitive bias that makes individuals not to see the alternative ways to use an item apart for the traditional purpose for which it was made.
