Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

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

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

O_er_t_o_

Complete the missing letters of the given word.