Find the missing letter in the last circle logically in the given below picture.

Can you find out the remainder when 3^300 is divided by 5?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

If 21x = 79x, what is the value of x?

Can you solve the below tricky visual equation?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

I have an eye but still cannot see.

Who am I?

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

Make a sentence consisting of three words that have the whole alphabet.