Direction: What value will come in place of the question mark (?) in the following question?

8, 17, 53, ?, 1079, 6479

Study the given pattern carefully and select the number that can replace the question mark (?) in it.
 First row: 17, 26, 60
 Second row: 8, 15, 31
 Third row: 11, 19, ?
 (NOTE: Operations should be performed on the whole numbers, without breaking down the number into its constituent digits. For example, 13 – Operations on 13 such as adding/deleting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

What is the value of [ 7÷ 14 x 8 + (5 ÷ 15 x 6 - 4 × 3)]?

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 45 * 9 * 3 * 7 * 5 * 133