Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Which digit occurred maximum times between the number 1 and 1000?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

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

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?