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?
Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?
How many minutes are there in Feb 2017? Note: The shortest answer is the correct answer.
What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?
It is always ahead of me yet I can never see it. What is it?
Can you find the next number in the sequence? 113 119 101 114 116 ?
1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?
The dirtier I get, the whiter I look. Who am I?
What four weights can be used to balance from 1 to 30 pounds?
Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?
What is the longest word in the dictionary?
In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.
