Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

Which tank will fill first?

I have branches, but no fruit, trunk or leaves. What am I?

Can you identify the Oscar-winning movie from the rebus below?

Which five letter word can be added at the end of below word to form a
valid word?

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The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?