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?

Can you find the 09 errors in the picture below?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

What has many teeth, but cannot bite?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?