From a pack of 52 cards, I placed 4 cards on the table.

I will give you 4 clues about the cards:

Clue 1: Card on left cannot be greater than the card on the right.
Clue 2: Difference between the 1st card and 3rd card is 8.
Clue 3: There is no card of an ace.
Clue 4: There are no face cards (queen, king, jacks).
Clue 5: Difference between the 2nd card and 4th card is 7.

Identify four cards?

Logical Playing Cards Puzzle

2 3 10 10

The 1st card has to be 2 and the last card has been 10 as there is no other way difference can be 8.
=> 2 ? 10 ?

because of clue 4, we know the 4th card is 10
=> 2 ? 10 10

because of clue 5, we know the 1st card is 3
=> 2 3 10 10