A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?
You walk into a room where there are three primates held in their respective cages: 1) A lion who is eating the flesh of a goat. 2) An orangutan who is playing with blocks. 3) A donkey who is sitting idle. Who is the most intelligent primate in the room?
Can you count the number of triangles in the given figure?
A father's child, a mother's child, yet no one's son. Who am I?
By what process could you make a 'Tea-Table' into food?
During which month do people sleep the least?
John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do? But it is quite possible, do you know how?
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 ?
There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units. Can you calculate the dimensions of this box with the given data?
Make eight squares by moving only two matchsticks. Note- Square can be of different sizes.
It is deaf, Dumb and Blind!!! Still, always tells the truth. What is it?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
