Rectify the following equality 101 - 102 = 1 by moving just one digit.

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

Can you solve the equation by finding the value of
A) Horse
B) Cowboy boot
C) Horseshoe

In the Picture?

what does the below math rebus puzzle mean?

Solve the counting riddle by identifying the number of triangles in the given picture.

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?