If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Can you count the number of squares in the figure below?

Identify the 10 differences between the two given pictures.

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Can you replace the question mark with the correct number in the below table sequence?