Meaningful order of the words: 

Planning (5) > Booking (2) > Boarding (3) > Travel (4) > Destination (1) 

Hence, Option (B) is correct.

The correct order are: 
4. Letter 
1. Word 
3. Sentence 
2. Paragraph 
Hence, option D is correct.

In English dictionary words come in to ascending order, therefore A is followed by B first after it C then R and by T. 

Therefore the correct order of given words in English dictionary is: 

Absent (4) → Activity(1) → Arise (3) → Attention (2)

Ascending order: 
A- Centimeter -> C- Decimeter ->  D- Metre -> B- Kilometer

Alphabetical order is: 

3) Hamlet 

5) Hammock 

1) Hanger 

2) Hanker 

4) Hassle 

Thus the correct sequence is 35124

Arranging the words in the order they appear in the dictionary: 

3. Effaceable 

5. Effacement 

4. Effacements 

1. Effacers 

2. Effacing 

Hence, the correct option is B.

FLIN is common in all words. Look for the next letters. 
Out of C, T, P, T, C; let’s first look for the words with C. 
H is again common. Then we have I & E, out of which E comes first. So first 5. 
Then 1. 
Then the word P will come. 
Out of the two common T present, let’s look for the next letters. 
Both the words are same and only the 4^th word has an extra ‘s’ that means it will come last. 
So the sequence is 51324 
Hence C

‘PA’ comes first. 

Then ‘PE’ will come. 

After which we can have ‘PO’ 

And out of the ‘PR’ which is common in Pragmatic & Protect, let’s look for the next letter to consider, out of which ‘A’ comes first and then ‘O’. 

So the sequence is: 35412 

3. Pastel 

5. Pebble

4. Postal 

1. Pragmatic 

2. Protect 

Hence, option B is the right answer.

Arrangement of words according to the Dictionary: 

Banal (1) > Banana (2) > Bandage (4) > Bandit (5) > Banish (3) 

Hence, Option (C) is correct.

First three letters of the words are same; therefore we will see from 4^th letter; 
‘Invariable’ will come first. 
Fourth letters of the words ‘Inventory’ and ‘Investigate’ is same; therefore we will see from 5^th; 
‘Inventory’ will come second and ‘Investigate’ will come third. 
Lastly; Invisible and ‘Involuntary’ will be at fourth and fifth position respectively. 
Thus the correct order is 4, 1, 5, 3, 2 

Hence Option D is correct