You have to calculate $\sqrt{2}$ on your scientific calculator by only pressing these buttons: [ 7 ][ 8 ][ 9 ][ DEL ][ A C ] [ 4 ][ 5 ][ 6 ][ × ][ ÷ ] [ 1 ][ 2 ][ 3 ][ + ][ - ] [ 0 ][ . ][×10^x][ ANS ][ = ] ...which are the bottom-most buttons on it. How can you...

Five friends Alice, Bob, Carole, Dylan and Emma are heading to a common destination 100 unit distance away. They start together. Grandma Alice walks at a speed of 1. Bob and Carole walk at speeds 4 and 5, respectively. Dylan uses a skateboard and is able to travel at speed 7. The roller skating E...

I have taken a group of students on a school trip. I want to organise them into two groups and so I have given each one a coloured hat. Some hats are red, while others are blue. Each child can see everyone else’s hats, but not their own. I am feeling obtuse, so I have asked the students to get th...

The picture below is a puzzle from the Boxentriq game. The dancing men will help me find a book, decoding it gives me "liberal ii". Using the number I have to find a hidden message with the book cipher. I can't find the book in question, any help?

What is the next term in the sequence: QOP, UYR, TRT, GHV Choices: a) TMY b) UYT c) UUT d) MNO I've tried replacing the letters with numbers but I still couldn't figure it out. What is the correct answer?

A snake-sounding head A snake-looking tail I fly with just 2 flaps And I lay just eggs What am I?

A bed of 5x13 movable slugs cast typesetting was composed for printing a part of publication on the daily paper. But someone mess up with the locks and shuffled the message by swapping two rows then two columns of letters. And again repeat swapping two rows then two columns of letters for few m...