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

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

Prove that the below maths equation is true.

8 + 8 = 91

When does a USA Potato change its nationality?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.