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?

When it is alive we sing, when it is dead we clap our hands. What is it?

What is the next number in the series?

15 29 56 108 208 ?

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

What word is represented by this rebus?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

Make a sentence consisting of three words that have the whole alphabet.

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?