easy
I'm not an air plane, but I can fly through the sky. I'm not a river, but I'm full of water. What am I?
Common Wrong Answers
“A bird”
While birds can fly through the sky, they are not associated with being 'full of water' like a cloud.
“An umbrella”
An umbrella is not capable of flying through the sky on its own and does not hold water in the same way that a cloud does.
“A balloon”
Although balloons can float in the sky, they are not 'full of water'; they are typically filled with air or helium.