Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

What does this say?

XLR8

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

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

What is the longest word in the dictionary?

Can you decipher the two rows to find the hidden word?

What does this rebus puzzle means ?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not-rounded numerals equals 24.

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?