(CNN) -- At times it was almost painful to watch. At one end of the court the world's No. 1 female tennis star playing well within herself; at the other her sister, a long way away from regaining that form and status.

"Venus has had a great week, and honestly, if she hadn't had to play so many matches, it would have been a much tougher match," Serena Williams said after comfortably beating her older sibling on Saturday to reach the final of the Family Circle Cup in Charleston.

The 31-year-old was slightly overstating the rigors of the competition in South Carolina, a tournament that heralded the formation of the women's tour back in 1973 but has this week attracted just two of the world's top-10 players.

Serena is one, and the other -- 10th-ranked Caroline Wozniacki -- crashed out in the quarterfinals on Friday against Swiss No. 63 Stefanie Vogele.

Both Williams sisters won two matches on Friday to set up their first meeting since 2009, but it was defending champion Serena who looked the least affected as she won 6-1 6-2 in just 54 minutes.

"She'll never admit it, but I don't think she was 100%," Serena said of her sister, who was diagnosed with a debilitating autoimmune disease before the 2011 U.S. Open -- a grand slam she has won twice, along with her five Wimbledons.

"But you will never get that out of her. And quite frankly, three matches for her is much tougher than three matches for me. It's definitely not easy -- because I'm struggling, and I can't imagine what she must be feeling." What are the answers to this following set of questions: 1. Who played the match in question?
2. What is her name?
3. Who was she competing against?
4. What's her name?
5. Where did this event take place?
6. What was the name of the event?
7. Who was the other high ranked player there?
8. What was her rank?
9. Did she win the event?
10. Who did she lose to?
11. Where was she from?
12. What does the one sibling have?
13. When did she learn this?
14. How many tournaments has she won?
15. Did the winner believe her competitor was at full strength?
16. Will the other ever say she was not at full strength?
Answer: 1. the world's No. 1 female tennis star
2. Serena Williams
3. her sister
4. Venus
5. Charleston
6. Family Circle Cup
7. Caroline Wozniacki
8. 10th
9. No
10. Stefanie Vogele
11. Sweden
12. a debilitating autoimmune disease
13. 2011
14. 7 total.
15. No
16. No

One of Anna's friends has chickenpox . Two days later, Katie has chickenpox. Anna's mother says: " Your best friend has chickenpox . We have to keep an eye on you." The next evening, Anna finds some red spots on her face. The next morning, she stays home from school. She can't go to her grandpa's birthday party. She can't go to her soccer practice. She can't go to the supermarket with her mother.Anna cries : " I don't like chickenpox. I miss school. I miss my friends." Then Anna's mother has an idea. After lunch, Katie, Mike and Danny come to Anna's home--- all with spots like her. Anna's mother says : " Let's have a chickenpox party!" All the afternoon, the kids play games. When Anna's friends have to go home, "See you at school." Katie says. "Having chickenpox is not so bad." says Danny. "I know," Anna says with a laugh , " Can we all have chickenpox again next week?" What are the answers to this following set of questions: 1. Who's friend is sick?
2. what is she sick with?
3. what is her name?
4. How many others have it?
5. what are their names?
6. Does Anna miss anything because of them?
7. what?
8. anything else?
9. what?
10. anything else?
11. what?
12. did she enjoy having them?
13. why not?
14. Who had a thought to fix that?
15. what did they do?
16. how many people came?
17. who?
18. what did they do there?
19. did they leave?
20. did she feel better?
Answer: 1. Anna's
2. chickenpox
3. Katie
4. Three
5. Mike Danny and Anna
6. Yes
7. school
8. Yes
9. her grandpa's birthday party
10. Yes
11. her soccer practice
12. No
13. she missed school and her friends
14. her mother
15. have a chickenpox party
16. Three
17. Katie, Mike and Danny
18. they played games
19. Yes
20. Yes

Long Beach, California (CNN) -- Taylor Wilson is going to create a safer source of nuclear energy, help reduce the world's stockpile of nuclear weapons, screen container ships for weapons and power manned missions to other planets. But first ... he has to graduate high school in May.

Jack Andraka is going to bring his 3-cent screening test for pancreatic, ovarian and lung cancer to market -- an alternative to a standard $800 test. But Jack, 16, hasn't been to high school much lately and isn't even sure he'll graduate.

The two teenagers with Justin Bieber style haircuts wowed the 1,400 people who attended TED2013 this week, fitting the conference's theme: "The Young. The Wise. The Undiscovered." They were among a number of youthful speakers who Time magazine's Ruth Davis Konigsberg called "some of the biggest showstoppers at the annual event."

By contrast, some of the older voices onstage struck notes that were far less hopeful. Northwestern University economist Robert Gordon declared that the era of strong economic growth in the United States is over -- as America faces the headwinds of an aging population, debt, inequality and educational weaknesses; he argued that it's hard to foresee innovations that could have the transformative effect electricity, indoor plumbing and the internal combustion engine had in powering growth in the past century.

Former Michigan Gov. Jennifer Granholm, calling for a private sector-funded "race to the top" among states, lamented the inability of Washington politicians to develop a national energy strategy. She got laughs when she noted that Congress' approval rating is worse than lice, root canals and Donald Trump (although better than that of gonorrhea and meth labs). What are the answers to this following set of questions: 1. How many people were at the event?
2. What was it?
3. Did anyone impress them?
4. Who?
5. Did they resemble anyone?
6. Whom?
7. How?
8. Were other speakers as cheerful as them?
9. What were their presentations like?
10. Did any politicians speak?
11. How many?
12. Who was from Michigan?
13. What office has she held?
14. Did people find her to be funny?
15. What happens in May?
16. Will Jack?
17. Did the event have a certain theme?
18. What was it?
Answer:
1. 1,400
2. TED2013
3. yes
4. two teenagers
5. yes
6. Justin Bieber
7. their haircuts
8. no
9. less hopeful.
10. yes
11. at least two
12. Jennifer Granholm
13. Governor
14. yes
15. Taylor might graduate
16. he's not sure
17. yes
18. The Young. The Wise. The Undiscovered