I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

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

If six children and two dogs were under an umbrella, how come none of them got wet?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

If an electric train is travelling south, then which way is the smoke going?

In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?