Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

Christina makes tasty toast in a small pan. After toasting one side of a slice, she turns it over. Each side takes 30 seconds. The pan can only hold two slices.
How can she toast both sides of three slices in 1 & 1/2 instead of 2 minutes?

What will you call your mother's brother's brother-in-law?

Replace the question mark in the picture below.

A father's child, a mother's child, yet no one's son.

Who am I?

What part of Turkey has the most feathers?

A man dies of old age on his 25 birthday. How is this possible?

What does this simple rebus mean?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?