10+10 and 11+11 can give you the same answer.

Explain how?

What word begins and ends with an E, but has only one letter?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

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

There are three identical triplets sisters. Demi is the oldest of them all and she always speaks the truth. Diana is the next one who is a liar always. Drew, the youngest of them all speaks both truth and lies randomly.

On a rainy day, a family friend Victor visited them. Since there were starkly identical, he was not able to recognize them. Thus to clarify, he asked one question to each one of them.

He started with the one standing on the left and asked, 'Which sister is in the middle of you three?' She answered, 'That's Demi.'

Then, he asked the one standing in the middle, 'What is your name?' She answered, 'I am Drew.'

Finally, he asked the one standing on the right, 'Who is standing in the middle?' She answered, 'She is Diana.'

Victor was left baffled. He asked the questions three times and received different answers every time.

Can you tell who was who?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Solve below rebus puzzle?

What can you catch but never throw?

How many triangles can you find in this given picture?