What is the riddle which can be asked all day with a different correct answer each time.

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

What has many teeth, but cannot bite?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

My location can be determined by the below rebus.
So where am i ?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.