In the number sequence '7 5 6 3 1 4 2 1 6 5 3', if all the odd numbers are increased by one and all the even numbers are increased by two, and then the new number sequence is arranged in ascending order, which will be the seventh number from the right?

Consider the numbers: 374, 659, 821, 945, 247. If the first and second digits of each number are interchanged, which of the following will become the third lowest number?

Consider the set of 3-digit numbers: 569, 987, 258, 753, 642. If the second digit of the smallest number is subtracted from the second digit of the largest number, what is the result?