Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L. Can you find an "ology" that begins with a P?
How can you make number one disappear by adding something to it?
Use only one mathematical symbol and all numbers (0-9) to get a sum of 99
Take 9 from 6, 10 from 9, 50 from 40, and leave 6. How Come ??
Can you find out the next digit in the following series ? 0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?
What's the only room from which no one can enter or leave
On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins. Can you tell me how many 20-paisa and 25-paisa he got?
You are given four results as below: 1111 = F 2222 = E 3333 = T Then, can you find out how to code 4444?
During which month do people sleep the least?
I am a three digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit. What number am I?
Which five letter word can be added at the end of below word to form a valid word? > Pin > Check > Boiling > View
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.
