You have two rectangular wires. Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn. However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes). So how could you measure 45 minutes ?
This is a classy optical illusion puzzle. What more you can find except bricks in the image below?
Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?
The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?
If, 6 / 7 = 2 3 / 9 = 7 8 / 2 = 6 Then 4 / 5 = ?
Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3. (You can use one number only once)
He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?
Which tank will fill first?
Find the hidden panda in the image below.
What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?
Forwards I am heavy, backward I am not. What am I?
The word ladder puzzle was invented by Lewis Carroll, author of Alice’s Adventures in Wonderland.