What is the Surname of Barbie Doll?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

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?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Three men in a cafe order a meal the total cost of which is $15. They each contribute $5. The waiter takes the money to the chef who recognises the three as friends and asks the waiter to return $5 to the men.

The waiter is not only poor at mathematics but dishonest and instead of going to the trouble of splitting the $5 between the three he simply gives them $1 each and pockets the remaining $2 for himself.

Now, each of the men effectively paid $4, the total paid is therefore $12. Add the $2 in the waiters pocket and this comes to $14. Where has the other $1 gone from the original $15?

What does below Rebus mean ?

esgg sgeg gegs gsge

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?