Boston (CNN) -- To see Mery Daniel today is to see how far she has come. Walking on her new prosthetic leg without crutches is a huge accomplishment, but to see Daniel ride 26 miles on a hand cycle underscores the tremendous progress she's made in the five months since the Boston Marathon bombings. 

"This is the biggest challenge I've faced since the bombing," the 31-year-old Haitian immigrant said, referring to her participation in a recent ride from Waltham, Massachusetts, to Gillette Stadium in Foxboro. She beamed as her 5-year old daughter, Ciarra, and husband, Richardson, ran to offer hugs and congratulations. 

"It's great," Richardson says proudly. "It's very encouraging to see -- despite what she's been through." 

April 15 was the day that profoundly changed Mery's life and that of so many others. 

Three people were killed and more than 250 were injured when a pair of bombs exploded just seconds apart near the finish line of the Boston Marathon. 

Suspect Tamerlan Tsarnaev was killed four days later in a standoff with police. His younger brother, Dzhokhar, faces charges that could bring a life sentence or the death penalty if he is convicted. He has pleaded not guilty. 

More than 14 people lost limbs in the bombing. 

Mery lost her left leg; amputated above the knee. Her right leg was spared, but it was severely mangled and she lost a significant portion of her calf. The team at Boston's Spaulding Rehabilitation Hospital oversees the therapy for many of the new amputees.  QUESTIONS:

Q1:
1. How many people lost a limb in the Boston bombing?
2. During the Boston bombing, how many people were there that lost a limb?
3. How many came out of the Boston bombing without a limb?
Q2:
1. Who lost a leg in the Boston bombing?
2. What is the name of the woman who lost a leg in the Boston bombing?
3. Whose leg was amputated in the Boston bombing?
Q3:
1. Which leg did Mery Daniel lose in the Boston bombing?
2. Which of Mery Daniel's legs was amputated in the Boston bombing?
3. Which of Mery Daniel's legs did she lose in the Boston bombing?
Q4:
1. Where did Mery Daniels left leg get amputated?
2. Which part of Mery Daniels' left leg was amputated?
3. Where on her left leg did Mery Daniels' amputation occur?
Q5:
1. Did Mery Daniels lose her right leg in the bombing?
2. Was Mery Daniels' right leg amputated like her left one?
3. Did Mery Daniels have to have her right leg amputated like her left?
Q6:
1. Is Mery Daniels' right leg in good condition?
2. Did Mery Daniels' right leg come out of the bombing unscathed?
3. Is everything alright with Mery Daniels' right leg?
Q7:
1. What was the problem with Mery Daniels' right calf?
2. What happened to Mery Daniels' right calf?
3. How was Mery Daniels' right calf injured?
Q8:
1. Where was Mery Daniels treated for her bombing injuries?
2. After the Boston bombing, where was Mery Daniels treated for her injuries?
3. What treatment facility treated Mery Daniels?
Q9:
1. What is the location of Spaulding Rehabilitation Hospital?
2. What city is Spaulding Rehabilitation Hospital located in?
3. In what city can Spaulding Rehabilitation Hospital be found?
Q10:
1. Did others, besides Mery Daniels get treated in Spaulding Rehabilitation Hospital?
2. Did Spaulding Rehabilitation Hospital treat people other than Mery Daniels?
3. Was Mery Daniels among other bombing victims at Spaulding Rehabilitation Hospital?
Q11:
1. What was happening during the Boston bombing?
2. What was the event happening during the bombing?
3. What event was bombed in Boston?
Q12:
1. On what day did the Boston bombing occur?
2. What was the date of the Boston marathon bombing?
3. On what date was there an attack on the Boston marathon?
Q13:
1. What is Mery Daniels' age?
2. How old is Mery Daniels?
3. How old is the Haitian survivor of the Boston bombing?
