I Tried Formula 1

(27:18)

I Trained Like A Black Belt For 90 Days

(1:17:48)

I Tried Delivering A Baby

(20:33)

I Tried Flight Attendant Academy

(15:5)

Whatever The Situation: Challenge Accepted!

(3:54)

I Joined The #1 Cheer Team In America

(26:17)

I Trained Like A Chess Grandmaster

(35:29)

Challenge accepted. With tractors from CLAAS.

(1:17)

Challenge Accepted.

(7:6)

Double Challenge Accepted

(4:37)

I Spent A Day With A Preschool Teacher

(13:18)

I Tried Etiquette School

(17:24)

I Tried Paramedic Academy

(29:12)

I Tried Police Academy

(33:4)

Barney Stinson - Challenge Accepted Compilation from How I Met Your Mother

(2:25)

I Trained Like An Olympic Boxer

(47:11)

I Tried Lifeguard Academy

(28:28)