At the first meeting of school volunteers, each of

the 10 people present shook hands with everyone

else there.

How many total handshakes were there?

A frog fell into a hole 11 feet deep.  Every day

he was able to crawl 4 feet up the side of the hole.

Each night he fell 2 feet down the side of the hole.

On what day did the frog get out of the hole?

A teacher gives a colored sheet of paper to each

of his 25 students.  The 1st student gets a red paper,

the 2nd gets green, the 3rd gets blue, the 4th gets

yellow, the 5th gets purple, and the 6th gets orange.

If this pattern is repeated until all the students have

a colored paper, what color will the last student get?

During the basketball game each of the 7 players

shook hands with everyone else on the team.

How many total handshakes were there?

A frog fell into a hole 18 feet deep.  Every day

he was able to crawl 4 feet up the side of the hole.

Each night he fell 1 foot down the side of the hole.

On what day did the frog get out of the hole?

A teacher gives a colored sheet of paper to each

of his 21 students.  The 1st student gets a red paper,

the 2nd gets green, the 3rd gets blue, the 4th gets

yellow, the 5th gets purple, and the 6th gets orange.

If this pattern is repeated until all the students have

a colored paper, what color will the last student get?