Solution:

Caesar is a King
Brutus is a Spy
Cassius is a Bureaucrat

Brutus is not the king, since if he is, then Caesar would also be the king.
Cassius is not the king, since his statement would then be a lie.

Therefore Caesar is the king. Hence Cassius is the bureaucrat, and Brutus is the spy.

Solution:

Youssef is name of a man , and out of 11 people only one is male

Solution:

Fatty and Fatty ->
<- Fatty

Slimy ->
<- Fatty
Fatty and Fatty ->
<- Fatty
Slimy ->
<- Fatty
Fatty and Fatty ->

Solution:

10968

Water image is 89601

Solution:

SITA

19 = S
9 = I
20 = T
1 = A

Solution:

44

In 12 hours, the minute and hour hands overlaps or are in exact opposite direction 22 times.
=> In 24 hours, the hands overlaps or are in opposite direction 44 times

Solution:

G = 'Roger Federer'
H = 'Rafael Nadal'

#A spoke the truth and the rest lied.

Solution:

The person should say, "I will be burned alive".

Solution:

It is perfectly possible. The sailors were looking across the deck at each other and not at the sea.

Solution:

There are only four cats. The room is too small and each cat is sitting at the tail of other.