Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?

The Puzzle: Here is a famous prize problem that Sam Loyd issued in 1882, offering $1000 as a prize for the best answer showing how to arrange the seven figures and the eight 'dots' .4.5.6.7.8.9.0. which would add up to 82

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

Can you solve below mathematical equation?

2^1234 - 2^1233

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?