#141 - Ice Cream Seller Riddle

On occasion of Diwali (a Hindu festival), the local ice cream seller is selling ice cream at an 80% discount. But, he got just two flavours, vanilla and cocoa-chipped. He is selling vanilla at Rs1 and Choco-chip at Rs2. However, he is giving just one ice cream to each person.

Shruti went to the shop and give the seller Rs.2 and without asking her the seller gives her Choco-chip ice cream. Next, Anmol comes and also gave the seller the same amount i.e. Rs2. Now the seller asks Anmol which ice-cream does he wants.

Why such a different behaviour towards Shruti and Anmol?



Shruti puts 2 Rs1 note which indicate that she needed the choco-chip ice cream. If she needed the vanilla she must have put just one Rs1 note. Anmol put just 1 Rs2 note, so the seller can not judge which ice cream he wants.

#142 - Cake cutting Puzzle

You need to cut a round cake into eight equal pieces with just 3 cut. Can you do it?

Step 1 : You need to cut the cake from the middle point across the diameter.
Step 2 : Then you need to cut the cake horizontally and you will have 4equal pieces.
Step 3 : Then you need to cut the cake horizontally and you will have 8 equal pieces.

#143 - Unique Words Puzzle

What is the unique property of the following words ?
* Revive
* Banana
* Grammar
* Voodoo
* Assess
* Potato
* Dresser
* Uneven

If we remove the first letter of the word and place it in the end. It will be read the same from front and back.

#144 - The Disappearing Mango Tree Riddle

There are many trees in my garden. One such tree is a mango tree and obviously, there are some mangoes on it. Using the Slingshot I try to get some mangoes. After half an hour there are no mangoes on trees and no mangoes with me.

How come ?

There are two mangoes on the tree. Using Slingshot I got one mango.
Therefore now one mango is with me and one mango is in the tree (note: we do not have mangoes (plural of mango).

#145 - Good Missing Number Series

Can you find the missing number in the series below

1 5 9 2 6 10 3 ? 11 4 8 12

7

Series given in the problem :
1 5 9 2 6 10 3 ? 11 4 8 12
Let us break the series as :
1 5 9
2 6 10
3 ? 11
4 8 12

Now, read the numbers from left, top to bottom. The missing number is obviously 7.

#146 - Famous 10 Castles Puzzle

In a time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together.He also asked the architect that at least one of his castle should be protected with walls.The architect could not come up with any solution that served all of King’s choice, but he suggested the best plan that you can see in the picture.Can you find a better solution to serve the king’s demand?

Famous 10 Castles Puzzle

If you see the solution picture, you will find out that two castles are protected with walls in this formation.

#147 - Popular Logical Barrel Puzzle

We have shown you a regular water barrel. Without using any measuring device can you check if barrels is more than half filled or less than half filled ?

Popular Logical Barrel Puzzle

Simple science, Tilt the barrel until the water will touch the upper end of the barrel. and if bottom part is visible then it is less than half filled else more than half.

#148 - Byomkesh Bakshi Mystery Puzzle

Byomkesh Bakshi was visiting his friend Ganpat Negi. He found out that his friend wife had just killed a burglar in self defence.
Bakshi asks Ganpat about what happened and he told that "His wife were watching television when suddenly the bell rang. She thought that it is her husband Ganpat but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
Byomkesh Bakshi asked the police to arrest here friend wife.
Why ?

Ganpat wife was planning to kill him and she planned to kill him as soon as he opened the door else why would she had the knife in her hand especially watching television.

#149 - Classy Statement Puzzle

Maria and Martina are strange women. One of them always lies on Mondays, Tuesdays, and Wednesdays and tells the truth on all other days of the week while the other lies on Thursdays, Fridays, and Saturdays and tells the truth on other days of the week.

Today, following statements were made.
Maria: I lie on Saturdays.
Martina: I will lie tomorrow.
Maria: I lie on Sundays.

Which day of the week is today?

Wednesday.

No one lies on Sunday, so Maria is lying. Which means today is not Sunday. Also now we know that Maria lies today, so "Maria: I lie on Saturdays" is also a lie. Therefore, today is not sturdy and can one of Monday, Tuesday, or Wednesday. Now we know Martina is telling the truth, therefore for the statement "Martina: I will lie tomorrow." true today has to be Wednesday.

#150 - Correct Dress Probability Problem

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?

1/3

Explanation
Assuming D1 is the dress for Sister1, D2 is the dress for Sister2 and D3 is the dress for Sister3.

Therefore the total number of cases are illustrated below.

Sister1 Sister2 Sister3
D1 D2 D3
D1 D3 D2
D2 D1 D3
D2 D3 D1 ..... (1)
D3 D1 D2 .... (2)
D3 D2 D1

In both steps (1) & (2), no one gets the correct Dress.
Therefore probability that no sister gets the correct dress is 2/6 = 1/3