Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

If eleven plus two equals one, what does nine plus five equal?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

You can hear me, but you can't touch or see me.

What am I?

Take away the whole and some still remain. What is it?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Solve this riddle by finding the odd one out from the rest.

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?