How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Can you name four days which start with the letter 'T'?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

You can see it everyday, But cannot touch it at will. What is it?

There is a five-letter word which has 3 consonants(all are same) and 2 different vowels.
Also, something wrong is associated with the word.

Can you name it?

Find the next number in the series below

21 32 54 87 131 ?

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1