#171 - Cheating Boyfriend Riddle
Wayne sends the below images to her girlfriend and she immediately knew that her boyfriend was cheating. How?

Wayne sends the below images to her girlfriend and she immediately knew that her boyfriend was cheating. How?
Who is dead?
Person-1
Explanation:
Person-3: Some will say the answer to be person-3 as his body is floating in the water. But the question is do dead bodies float in water?. The answer is yes, but it takes at least 2 to 3 days for a dead body to float. In the starting 1 to 2 days, a dead body sink under the water, thereafter it starts floating. Thus, person-3 is not dead.
Person-2: There is vibration in the water. This makes us sure that person-2 is not dead.
Person-1: If you see closely, he is having a book in his hand and it is in the water. Also, he seems to be in a subconscious state.
So, the answer to this puzzle is Person-1.
During a day trip to a beach, four friends - Bruno, Michele, Anthony, and Stew - had an unexpected incident when one of them managed to steal a watch from a guest.
Can you identify the thief?
Look at the picture carefully. Can you identify the murderer?
A numeric lock has 3 digit code with the below rules:
(3,0,2)one number is correct and well-placed;
(3,5,6)one number is correct but wrong placed;
(5,7,4)Two numbers are correct but wrong placed;
(6,8,9)nothing is correct;
(6,7,0)one number is correct but wrongly placed
405
A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?
If the officials thought he was jumping with a hostage, they would never risk giving him a faulty parachute.
You are on your way to visit your Grandma, who lives at the end of the valley. It's her birthday, and you want to give her the cakes you've made.
Between your house and her house, you have to cross 7 bridges, and as it goes in the land of make believe, there is a troll under every bridge! Each troll, quite rightly, insists that you pay a troll toll. Before you can cross their bridge, you have to give them half of the cakes you are carrying, but as they are kind trolls, they each give you back a single cake.
How many cakes do you have to leave home with to make sure that you arrive at Grandma's with exactly 2 cakes?
2: At each bridge you are required to give half of your cakes, and you receive one back. Which leaves you with 2 cakes after every bridge.
What are the next three numbers in this series?
4, 6, 12, 18, 30, 42, 60, 72, 102, 108, ?, ?, ?
The series lists numbers that are flanked by two prime numbers.
4 (3 and 5 are prime)
6 (5 and 7 are prime)
12 (11 and 13 are prime)
18 (17 and 19 are prime)
30 (29 and 31 are prime)
42 (41 and 43 are prime)
60 (59 and 61 are prime)
72 (71 and 73 are prime)
102 (101 and 103 are prime)
108 (107 and 109 are prime)
thus
138 (137 and 139 are prime), 150 (149 and 151 are prime), 180 (179 and 181 are prime