Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.

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

Can you find out which number multiplied by itself will give the output as 12345678987654321?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

Find the value of "?" in the ball picture Riddle below:

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

If all the below statements are true

1. Gianni was either in Italy or France in 1997.
2. If Gianni did not kill Versace, Hilton must have killed him.
3. If Versace died of suffocation, then either Gianni killed him or Versace committed suicide.
4. If Gianni was in Italy in 1997, then Gianni did not kill Versace.
5. Versace died of suffocation, but he did not kill himself.

Who killed Versace and where was Gianni in 1997?