Create a basic calculator that can add, subtract, multiply, and divide numbers entered by the user.
Build a game where the computer selects a random number and the user tries to guess it.
Create a command-line to-do list where users can add, remove, and view tasks.
Convert temperatures between Celsius, Fahrenheit, and Kelvin.
Create a multiple-choice quiz that asks the user questions and gives a score at the end.
Check whether a string entered by the user is a palindrome.
Set an alarm for a specific time that prints a message or plays a sound when triggered.
Calculate body mass index based on user input for height and weight.
Convert units of measurement such as length, weight, and volume.
Count the number of words, characters, and sentences in a given text.
Create a story with blanks where the user inputs words to complete it.
Play a game of rock-paper-scissors against the computer.
Print a multiplication table for a number entered by the user.
Create a countdown timer that counts down from a user-specified number of seconds.
Store contact information such as name, phone number, and email, and allow viewing or editing.