Before Mount Everest was discovered, what was the highest mountain in the world?
Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.
Decode the below four famous ciphers:
8P of the SS
1M of the E
1S of the SS
60M in 1H
It belongs to you, but other people use it more than you do. What is it?
Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?
If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?
I am an odd number. Take away a letter and I become even. What number am I?
John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?
What always comes into a house through the keyhole?
Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.
* *
x *
=====
* * *
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.
