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?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Which wheel of car does not rotate when you turn your car right?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

You can hear me, but you can't touch or see me.

What am I?

You walk into a room and see a bed. On the bed, there are two dogs, five cats, a giraffe, six cows, and a goose. There are also three doves flying above the bed. How many legs are on the floor?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

When 99 is considered higher than 100?

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?