Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

What can jump higher than a building?

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

What do you see in the image below

What's a single-digit number with no value?

What is next number in the pattern below:

131 517 192 123 ?

Which is the smallest number that you can write using all the vowels exactly once?