What DATA TYPE is used to represent textual data or series of characters?

What DATA TYPE is used to represent positive or negative NUMBERS with or

without decimal place, or NUMBERS written using exponential notation?

What is a DATA TYPE that can hold only two values, that is true or false?

What DATA TYPE is the following statement talking about? "If a variable has been declared, but has not been assigned a value"

What is the DATA TYPE that means that there is "NO VALUE"?

What is the "complex" DATA TYPE that allows you to store collections of data?

What is a DATA TYPE is used for storing multiple values in single variable?

What is the DATA TYPE that is a callable object that executes a block of code?

What is the DATA TYPE that can be used to find out what type of data a variable or

operand contains?

What is the DATA TYPE that is unique in terms of its name because it doesn't have "Data type"?