Replace the question mark with the correct number.

How can you make number one disappear by adding something to it?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?

I look at you, you look at me, I raise my right, you raise your left. What am I?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

It belongs to you, but other people use it more than you do. What is it?

How do you go from 98 to 720 using just one letter?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?