As fur (far) as possible…

There is no dirt in a hole!

Microwave

Catcher and Umpire in baseball!

If I asked which door will lead to freedom, what will the other guard reply?

If the above question is asked to the truth teller, he will say that the liar guard will point you to the death door.

If the above question is asked to the liar guard, he will say a lie and also point to the death door.

In any scenario, both will point to the death door! So take the other door.

Make 2 in 102  as the power of 10.. Hence 10 raised to the power of 2 = 100

Now, 101 – 100 = 1.

Password is MOONLIGHT

It is based on the corresponding letter of each word:

1st letter in mobile – M
2nd letter in books – O
2nd letter in roars – O
1st letter in night – N
4th letter is balls – L
2nd letter  in lighters – I
1st letter  in ghost – G
1st letter in hat – H
3rd letter in watches – T

CARDIFF is 100 miles.

Each consonant has a value of -100 and each vowel adds up 300..

For e.g. in the word BERLIN: 2 vowels * 300 – 4 consonants * 100 = 200…

Hence for the word CARDIFF: 2 vowels * 300 – 5 consonants * 100 = 100…

Total 6 animals:

2 Dogs going to the city
2 Monkeys going to the city
2 cats  (one with each monkey)

Any number!

Consider a number as X.
Double that number => 2X
Multiple by 4 => 8X
Divide by 8 => X