Questions

Ascent’ means upward moment and is incorrect as per the meaning of the sentence. ‘Accent’ means to emphasize a particular feature; ‘Approof’ means trial, and ‘Assent’ means to give an expression of approval or agreement. Thus, ‘Ascent’ needs to be replaced with ‘Assent’ Thus, the correct formation would be, ‘My father has given his assent for my long tour’.

Magnetic disk is a kind of data storage device. Storage capacity of magnetic disk depends on 

1. tracks per inch of surface

2. bits per inch of tracks

3. disk pack in disk surface

It can be shown as ::

'Internet' is the shortened form of 'INTERnational-NETwork' which is the interconnected network of all the Web Servers worldwide. It is often called the 'World Wide Web'. 

The given puzzle follows a logic that,

2 + 10 = 24 => 2 + 10 = 12 x 2 = 24

3 + 6 = 27 => 3 + 6 = 9 x 3 = 27

7 + 2 = 63 = 7 + 2 = 9 x 7 = 63

Similarly, 5 + 3 = 40 => 5 + 3 = 8 x 5 = 40.

Nebulous means hazy, Tiny means small, Vague means unclear, Insignificant means unimportant, Inadequate means in sufficient. So, Nebulous is nearest in meaning to Vague.