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

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

who is silent in the parliament?

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

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?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.