The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?

Can you quickly find which two matchstick figures are identical?

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

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 ?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

What begins with T, ends with T, and has T in it?