New chairman of Film Television Institute of India is

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

80/ √? + 19²/ √? = ?^(3/2)

32 X 25 ÷ 4 + 12 of 30 = ? X 5 - 30 

116 ÷ 280 of 1/2 + 3/5 × 5/3 = ?

150% of 850 ÷ 25 – 25 = ?% of (39312 ÷ 1512)

1111.25 × 9.05 + 2323.23 × 9.05 – 2121.37 ×9.05 =?

464 + 181 +? = (154 × 25) - (15) ²  

(64/25)^?  × (125/512)^?-1 =  5/8

(25)² × 4 ÷ 5 + (3)³ + 48=? + 425

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

30% of 50% of 1200 = 18/11 × ?