Solution:

7 years.

Explanation:
Kylian * Thorgan * Eden = 175
and only value that fits in above equation is:
Kylian = Thorgan = 5years
Eden = 7 years

Solution:

Parents.

Solution:

Manila --> Panama --> Havana --> Guyana -> Lusaka --> Luanda --> Uganda

Solution:

1000$ - (Profit he earned in antique watch)

Solution:

Yes (if we want to drink), No (if don't)

Explanation:
Note: The question barman asked if all want to have the drink.

The first logician replied, " I don't know" implies he want to have the drink but is not sure if other two want to have drink or not.

The second logician replied, " I don't know" implies he want to have the drink but is not sure if other third one want to have the drink or not (he knows 1st want to have drink else he would have said 'no')

Similarly, third knows that other two wanna have the drink and hence his decision is decisive.

Solution:

31

Explanation:
Ramanujan lighting the candles in binary.
11110 =30
11111 =31

Solution:

Congratulations

Explanation:
Message Was: Company Piano Numb Dining Racial Mozetta Traitor Meou Legacy Quintana Trick Missi Orange Frozen Sapphire

Pick the 1st letter of the first word, 2nd letter of the second word, Pick 1st letter from the third word and so on.

Company - C
Piano - O
Numb - N
Dining - G
Racial - R
Mozetta - A
Traitor - T
Meou - U
Legacy - L
Quintana - A
Trick - T
Missi - I
Orange - O
Frozen - N
Sapphire - S

Solution:

They were playing tennis.

Tiger Phil
30 - 30
40 - 30 (Phil hit a bad shot)
Game won - 30 (Tiger hit an awesome shot)

Solution:

3

Explanation:
Digits are represented in binary form where a ball is 1 and a ring is 0.
001 = 1
010 = 2
100 = 4
011 = 3

Solution:

Are you Thorgan

Explanation:
Below will be the reply of three brothers:
Eden: No (speaks truth)
Thorgan: No (speaks lie)
Kylian: Yes (speaks lie)

Therefore if its Kylian then only you will get a reply as "Yes" and then you ask for your money.