Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.
Replace the question mark with the correct number. 2 + 2= 4 3 + 3= 18 4 + 4= 48 5 + 5= ?
Can you find a pattern and the missing number in the series given below? 100, 155, 258,? , 584, 819.
What breaks yet never falls, and what falls yet never breaks?
In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?
What is the word or phrase?
What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?
Find the next number in the series. 1 10 24 43 67 ?
How do you go from 98 to 720 using just one letter?
Can you solve this amazing hard number series problem? 7, 8, 10, 12, 16, 18 ?
You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.
