The first box has two white balls. The second box has two black balls. The third box has a white and a black ball. Boxes are labeled but all labels are wrong! You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball. How many such operations are necessary to correctly label the boxes?
What does below chemistry rebus means?
There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?
Find the next number in the series. 1 10 24 43 67 ?
I am Huge on Sunday and Saturday. I am small from Tuesday to Thursday. I do not exist on Monday and Friday. Who am I?
There are six people in a family namely M, N, O, P, Q and R. R and O are brother and sister. N is the brother of Q's husband. P is the father of M and grandfather of R. How many male members are in the family?
Which statement is true out of the following? One statement here is false. Two statements here are false. Three statements here are false.
You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?
What word does this rebus represent? meta meta meta meta
John is selling fruits. He sells grapes at $30, Dates $25, and a Wolfberry $45. At what price does he sell fig? PS: Logical Thinking
Can you convert the number zero(0) into a positive number using just one mathematical operator ?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki
