The following is a collection of some elementary school digital riddles: 1. Two birds, singing in the trees, one of them suddenly flew away. How much is left? Answer: Two (because only one has flown away and the other is still in the tree). Pleasant goat, beautiful goat and lazy goat go to the park to play together. How many legs do they have? Answer: 8 legs (3 sheep and you). Xiaoming has three apples. He ate them. How much is left? Answer: 1 (because "how much is left" already implies subtraction) 4. Five people hold a tree. How many meters is the tallest person? Answer: there are no specific figures (because the topic only requires height comparison, and no specific height information is given) 5. My mother-in-law took three grandchildren to buy ice cream, bought five ice creams and everyone ate them. How much ice cream is left? Answer: 0 ice cream (everyone ate it, so there is nothing left). 6. There are five flowers in the vase, and two of them were blown down by the wind. How many flowers are left? Answer: There are no flowers (because flowers break when the wind blows down). I hope the above digital riddles can bring some fun to children!