I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

I am white when I am dirty, and black when I am clean. What am I?

How many triangles can you count in the figure given?

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

What can you hold in your right hand, but never in your left hand?

what's the probability of getting a king or a queen from a pack of 52 cards?

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

Replace the question mark in the picture below.