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

You see me once in June, twice in November, and not at all in May. What am I?

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

Count the number of balls in picture below:

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

I am sure no one can have two things for dinner. what are they?

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?

Can you name some countries which do not have the alphabet 'A' in them?