Imagine a student named Alex who wakes up with a sore throat. It hurts to swallow, and Alex feels tired. ...

Imagine a company with 100 workers. The workers use email, chat, video calls, and phone calls every day. The company ...

One evening, Ali was walking through a garden when he saw a long animal moving through the grass. He called ...

Imagine Ali needs a ride to the airport. He opens the Uber app and sees many ride choices. He knows ...

A man in New York City needed to prove his address in court. His lawyer told him to sign an ...

A small online store sells hundreds of products every day. When a customer buys a shirt, the system quickly records ...