Water, glass-pane, turtle eggs, bug

1 If you place water and then after a glass-pane, in the water, can water flow through the glass-pane.
2 If you place 2 glass-pane next to each other, the water does not fill number.
3 Turtle eggs can be placed on top of each other.
4 Turtle eggs can hang in the air.

The water problems are also in survival, and in all world's