A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:
There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?
If,
20 % 5 = 24
21 % 7 = 33
42 % 6 = 67
Then;
66 % 6 = ?
Which is the rope you never skip with?
There are three identical triplets sisters. Demi is the oldest of them all and she always speaks the truth. Diana is the next one who is a liar always. Drew, the youngest of them all speaks both truth and lies randomly.
On a rainy day, a family friend Victor visited them. Since there were starkly identical, he was not able to recognize them. Thus to clarify, he asked one question to each one of them.
He started with the one standing on the left and asked, 'Which sister is in the middle of you three?' She answered, 'That's Demi.'
Then, he asked the one standing in the middle, 'What is your name?' She answered, 'I am Drew.'
Finally, he asked the one standing on the right, 'Who is standing in the middle?' She answered, 'She is Diana.'
Victor was left baffled. He asked the questions three times and received different answers every time.
Can you tell who was who?
What is the unique property of the following words ?
* Revive
* Banana
* Grammar
* Voodoo
* Assess
* Potato
* Dresser
* Uneven
I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?
How can you write nineteen in a manner that if we take out one, it becomes twenty?
You can see it everyday, But cannot touch it at will. What is it?
A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?
Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.
What do you see in the given picture?
The inventor of the Rubik’s Cube didn’t realize he’d built a puzzle until he scrambled it the first time and tried to restore it.