WHAT IS CHALLENGES?
Something that by its nature or character serves as a call to make special effort, a demand to explain, justify, or difficulty in an undertaking that is stimulating to one engaged in it.
A push-up (or press-up ) is a common calisthenics
exercise performed in a prone position by raising and lowering the body using the arms. Push-ups exercise the pectoral muscles, triceps, and anterior deltoids , with ancillary benefits to the rest of the deltoids,
serratus anterior, coracobrachialis and the midsection as a whole. Push-ups are a basic exercise used in civilian athletic training or physical education and commonly in military physical training . They are also a common form of punishment used in the military, school sport, or in some martial arts disciplines.
Stand up straight with a dumbbell in each hand at arm’s length. Keep your elbows close to your torso and rotate the palms of your hands until they are facing forward. This will be your starting position. Now, keeping the upper arms stationary, exhale and curl the weights while contracting your biceps.
The deadlift is a weight training exercise in which a loaded barbell or bar is lifted off the ground to the level of the hips, then lowered to the ground.  It is one of the three powerlifting exercises, along with the squat and bench press .