Find out the alternative which will replace the question

What value should come in place of the question mark (?) in the following question?

2048  ÷  16  +  256  ×  2  −  180

What will come in the place of question mark (?) in the given expression?

55% of 1600 – (18 × 50) = ? ÷ 16 

Evaluate: 18 ÷ 3 × 4 + 6 − 5

18, 25, 33, 42, 52, 63, ?

√(24 × 5 ÷ ?) × 4 = 56 + 34 – 10

25% of 1600 – 15² = ? × 5

8⁹ ÷ 512 × (1/64) = (2³)^?

What will come in the place of question mark (?) in the given expression?

? = {1026 ÷ 54 + 17 × 13 – (384 ÷ 24)} 

?% of 320 - 69 = 123

520% of 360 – 12% of 400 = ? x 4