Who has been appointed as the next Chief of the Army

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

5(1/4) + 3(1/2) - 2(1/8) = ?

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

(18 × 8 ÷ 12) × 10 = ?

Find the value of 'p' in the given expression: 15 of 6 ÷ p x 4 = 30.

4.2 × 6.5 × 7.8 = ?

(6² - 5² ) % of 800 = 22 X √?

? × 5.5 = √1225 + 40% of 30% of 37.5% of 5000 – 6³

25% of 140 + 2 × 8 = ? + 9 × 5

[(11)² - (12)² + (5)³]² = ?

236.23-653.23+696.23=?