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.
The more complicated puzzles require that kids dedicate extra time and attention to complete the puzzle from start to finish. There are many reasons why puzzles are great for children of all ages: Puzzles are a great educational or learning toy, because they encourage kids to follow steps to solve a problem