When monkey rotate the gear, which mark will be hit 1 or 2 ?

Can you find out which triangle will have a bigger area among the following?
1. A triangle with sides 300, 400 and 500
2. A triangle with sides 300, 400 and 700

What Does this text mean:

important=important

John is the son of Jacob.
So,
Jacob is the_____of John's father?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

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

Our product and our sum always give the same answer. Who are we?

Three people are in a room. Ronni looks at the Nile. The Nile looks at Senthil. Ronni is married but Senthil is not married. At any point, is a married person looking at an unmarried person? Yes, No or Cannot be determined.

Which tank will fill first?