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

O T T F F S S ?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

I’m tall when I’m young, and I’m short when I’m old. What am I?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?