One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

What has a ring but no finger?

If 21x = 79x, what is the value of x?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

What four weights can be used to balance from 1 to 30 pounds?

what does this picture(rebus) riddle means ?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Why Aeroplane windows are round?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?