Remove the tank cover and check the water level after the fill valve has shut off. It should be about one inch below the opening of the overflow tube. If it is significantly lower than that, there may not be enough water in the tank to fill the bowl after a flush. Correct this by adjusting the float.
The average child can do this during the second half of this year. Between 24-36 months, children are typically able to work simple insert puzzles (e.g., completes a three-piece simple puzzle where pieces are whole objects). Also, children can remove a part from a toy (e.g., a wheel) and replace it.
6 Months: Babies enjoy transferring puzzle pieces from one hand to the other and mouthing them like a cracker. 12 Months: At this age, kids have fun turning the puzzle board over to dump the pieces all over the floor. They can also use their pincer grip to take pieces out by pulling up on the knobs.