Bodyweight exercises are ideal for building muscle and burning fat.
Try this full body combination bodyweight exercise. It will give tremendous conditioning, build muscle and blowtorch your fat.
Warning: This is for advanced trainees.

Stand under a pull up bar drop down and execute a burpee+push up then jump up grab the pull up bar and do a pull up. This is one rep. So this is a burpee+push up+ pull up combination.

Do the following ladder

1 rep
30 secs rest
2 reps
30 secs rest
3 reps
30 secs rest
4 reps
30 secs rest
5 reps
30 secs rest
6 reps
30 secs rest
7 reps
30 secs rest
8 reps
30 secs rest
9 reps
30 secs rest
10 reps
30 secs rest
9 reps
30 secs rest
8 reps
30 secs rest
7 reps
30 secs rest
6 reps
30 secs rest
5 reps
30 secs rest
4 reps
30 secs rest
3 reps
30 secs rest
2 reps
30 secs rest
1 rep

This is total 100 burpees with push ups+ 100 pull ups
Try doing it with 30 sec rest. Between each step of the ladder.
It will take max 20 to 25 minutes.