What are the propaganda slogans about the really interesting crossword puzzle of Chinese characters?

The following are some publicity slogans about Chinese charades:

1. There is a moon in the sky, with a little red in the middle. There are still hidden in this word, one sun after another. (Answer: Ming).

2. Red locomotive, black body, rolling burning wheels and loud whistle. (answer: car).

3. Red flowers and green leaves weigh hundreds of thousands, so going back and forth is always different. Two people head back, two belly heads forward. (answer: door).

4. The small house is white, and there is a girl sitting in it. The girl has a flower on her head and two ears beside her. (Answer: Dai).

The slogan of crossword puzzles can attract attention, stimulate interest, increase participation and improve brand awareness.