#571 - How Many Times Chocolate Bar

There is a 2 x 8 chocolate bar I have with me. I can break this bar along the length or the breadth. Now, I want to obtain 1 x 1 pieces.

How many times do you think I need to break it to get what I want ?

15
You can calculate it using old school way. However if you want to solve using logic, you can look below:
There is one piece of chocolate and we need exactly 2 x 8 = 16 pieces.
Whenever you break that bar, you will get one more piece. Thus, you will need to break it (16 - 1) = 15 times.

#572 - Clever How To Die Riddle

A king sentenced a man of death sentence for some crime he had committed. Known for his kindness, the king told the culprit that he had a choice to die through a way he decides.

The culprit was clever and said something that saved him from the death. What method do you think he must have chosen for his death ?

The culprit chose to die of an old age.

#573 - What 6 Letter Word Puzzle

Can you make a six-letter word using the letters N, A and B ?

The word is BANANA.

#574 - Who Is Taller Puzzle

500 women soldiers are arranged in an array of ten rows and fifty columns in accordance with their respective heights. Now, the tallest woman from each row is asked to move out in the front. From them, the shortest one is labelled as Alpha. They are then asked to resume their original position.

Now, the shortest woman in each column is asked to come out in front. The tallest among them is labelled as Beta.

Can you find out if Alpha will be taller or Beta?

Alpha and Beta are the same woman.

Let us begin by making the assumption that the numbers represent the height of the women.

Now, the tallest among 1, 2, 3, 4 etc. will be 50 or Alpha.
The shortest among 50, 100, ... , 500 will be 50 or Beta.

Therefore, they both are the same woman.

#575 - Chances Of Survival Probability Puzzle

You are trapped into a death trap by the famous jigsaw killer. As usual, a screen flashes in front of you and explains you the trap game.

There are 100 pearls kept in a bowl in front of you and an empty bowl. Among the 100 pearls, 50 are white and 50 are black. You can divide them as you like into the two bowls. Once you are done, you will pull a lever, which will turn the room pitch black. The bowls will move and shuffle around. In the dark, you have to pick up one pearl from any bowl. Once you do that, the room will flood with lights again. If the peral you have in your hand is white, you will be allowed to live, but if the pearl you picked is black, the room will be filled with poisonous gas and you will die.

How will divide the pearls to increase your chances of survival?

For best probability of living, you must place one white pearl in a bowl and all the rest into another bowl.

This gives you a 1/2 probability of choosing a bowl which has just a white pearl. If you choose that, you will live.
If you choose another, you will still have an almost 1/2 probability of picking up a white pearl. (49 white pearls and 50 black pearls).

#576 - Square Count Puzzle

Can you count the number of squares that have been placed in the given picture?

Square Count Puzzle

There are eighteen squares in total. To make it easy for you, we have colored the squares in the center (six squares). Now, you can easily count the rest of the squares which amounts to twelve.

#577 - Hard Square Count

Can you calculate the total number of square in the given figure?

Hard Square Count

The total number of squares are 24.Refer to the attached picture to know the insight about how we calculated them.

#578 - Blind Who Am I

I have a eye but still cannot see.

Who am i ?

I am a needle

#579 - Photo Plexer Puzzle

Can you solve the photo plexer logic ?

Photo Plexer Puzzle

Nice Personality (n + ice + Purse on ality)

#580 - River Crossing Guard Prisoner Family

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

The guard and the prisoner cross the river
The guard comes back
The guard and the girl cross the river.
The guard and the prisoner comes back.
The mother and the girl cross the river.
Mother comes back
The mother and the father cross the river
Father comes back
The guard and the prisoner cross the river
Mother comes back
The father and the mother cross the river
Father comes back
The father and the boy cross the river
The guard and the prisoner comes back
The guard and the boy cross the river
The guard comes back
The guard and the prisoner cross the river.