1) The world's first car radio was invented in 1929.

2) The universe is estimated to be around 13.8 billion years old.

3) The speed of a sneeze can reach up to 100 miles per hour (160 kilometers per hour).

4) Sushi is a traditional Japanese dish made of vinegared rice combined with various ingredients, such as raw or cooked seafood, vegetables, and nori (seaweed). It is known for its artful presentation and delicate flavors, and has gained immense popularity worldwide. Sushi can take many forms, including nigiri (hand-pressed rice topped with ingredients) and maki (rolled sushi wrapped in seaweed), and is often enjoyed with soy sauce, wasabi, and pickled ginger.