Solution:

D & C.

For details, Please check the video.

Solution:

It can be done as shown in the video below.

Solution:

75.

For a detailed explanation, please watch the video.

Solution:

16

Watch Video for more explanation.

Solution:

30.

For Explanation, watch video

Solution:

It can be done as shown in the picture below. You can also watch video For more explanation.

Solution:

$2000

Explanation:
Profit from 1st transaction = $1000 (23000-22000)
Profit from 2nd transaction = $1000 (24000-24000)

So the overall profit will be = $2000.

Solution:

49.

Please watch the video for an explanation.

Solution:

Chilli no. 4.

Watch the video for an explanation.

Solution:

All

Explanation:
By watching the video you will observe that
Person D: The first person will be going to die as the object passes through him.
Person C: Dies due to spikes
Person B: Upon falling, over the see-saw, the blue object lifts up and then kill the person at B
Person A&E: Dies at the end due to coronavirus epidemic spread across the world.