Can you count the number of lines in the below picture?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

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

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

Which country gets ill every time?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

What does below Rebus mean ?

esgg sgeg gegs gsge

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?