5. (10 points) Uncle Wang raises some chickens, rabbits, and geese. The geese stand on both feet during the day and on one foot at night; the chickens hide their heads when they sleep at night; careful Yueyue noticed: regardless of whether it is day or night, the difference between the number of feet and the number of heads is the same. Therefore, if Yueyue can count 56 legs during the day, she will count $\qquad$ heads at night.
5. (10 points) Uncle Wang raises some chickens, rabbits, and geese. The geese stand on both feet during the day and on one foot at night; the chickens hide their heads when they sleep at night. Careful Yueyue found that: regardless of whether it is day or night, the difference between the number of feet and the number of heads is the same. Therefore, if Yueyue can count 56 legs during the day, she will count 14 heads at night.
【Solution】Solution: $56 \div 4=14$ (individuals)
Answer: At night, she will count 14 heads.
Therefore, the answer is: 14.