If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?
Prove that twice of ten is the same as twice of eleven.
Count the number of times the letter "F" appears in the following paragraph: FAY FRIED FIFTY POUNDS OF SALTED FISH AND THREE POUNDS OF DRY FENNEL FOR DINNER FOR FORTY MEMBERS OF HER FATHER'S FAMILY.
Manish and Manoj play 5 games of chess. Both Manish and Manoj win the exact same number of games. There is no tie at all. How?
I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2. What is the chance of picking a pair of blue socks?
There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?
I look at you, you look at me I raise my right, you raise your left. What am I?
The following "Brain Bat" means Slow Down. S L O W Using the same logic, can you tell us what does the following Brain Bat means ? E V I G
What is the fastest way to double your money?
Can you solve this amazing hard number series problem? 7, 8, 10, 12, 16, 18 ?
Find the last number in the series below: voN luJ yaM raM ---
The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.