I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

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.

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

What can you catch but never throw?

John and his team plan to rob a safe. They got just one chance to break the code else the local police will be informed. Below are clues:
A) Exactly one number is perfectly placed: 9 8 1
B) Everything is incorrect: 9 2 4
C) Two numbers are part of the code of the safe but are wrongly placed: 0 9 3
D) One number is part of the code of the safe but is wrongly placed: 1 4 7
E) One number is part of the code of the safe but is wrongly placed: 7 8 3

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

Complete the table series riddle by finding the number that can replace "??".

Find the next number in the sequence

1, 2, 6, 21, 88, __?