In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?
I guess 76.8% of readers will like this riddle. What's the least number of people should read this post?
Find the number of squares in the below picture
A network of 20 x 10 squares is given to you. Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?
I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?
A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph. Which of the trains will be farther from point A when they meet ?
Lady Gaga is pregnant and currently has 6 daughters 1. Dorry 2. Rebeka 3. Michael 4. Faniya 5. Sophia 6. Lavanya What will she name her next child girl? (Think Logical) A. Neema B. Tanya C. Tisha D. Jenniffer
I cannot talk, but I always reply when spoken to. What am I?
It's a test that will check your IQ. Suppose you have one 11 minute hourglass and one 13 minute hourglass. Can you measure exactly fifteen minutes using them ?
Aman has 1.15 rupees in his pocket. There are a total of 6 coins in his pocket. When his friend asked him for a change, he could not give change for a rupee and five paisa. Can you tell which coins he has?
What are the 50th, 63rd and 100th numbers in the sequence below? 4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...
In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.