Write the next letter in this sequence.
O, T, T, F, F, S, S, E, __
**Hint: It is a Number Series Puzzle

What Deficiency does the below rebus represent?

VIT_MIN

If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?

Through your logical capabilities, can you make 7 an even?

Kareena is older than Katrina and younger than Karishma. Isabelle is younger than Bipasha and Karishma. Bipasha is older than Karishma. If Kareena and Isabelle are the same age, who's the youngest?

What is wrong in the below Picture?

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

I am white when I am dirty, and black when I am clean. What am I?

Using exactly three matchsticks, can you divide the area into two equal parts?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.