If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

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?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

Can you spot the man between the coffee bean in the picture below ?

Find the missing letter in the last circle logically in the given below picture.

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

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.