Which tank will fill first?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Identify the 10 differences between the two given pictures.

All Marigolds are flowers.
Few Flowers are used to make colors.
Therefore, some Marigold are used to make colors.

True Or False?

Can you find the mistake in the below statement?

There is an exact a week gap between Christmas and New Year. Hence, It is obvious that the new year that comes right after Christmas comes on the same day of the week.

A Strange thing happened in the Year 1777. Christmas occurs on Wednesday and New Year on Monday. How is that possible?

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

Decode below rebus
D
N
A
T
S , D