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

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

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

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

Usually, a boxing match consists of twelve rounds. In a particular friendly match between two heavyweights, the match was finished in the ninth round itself as one of the boxers knocked out the other one.

But, in that fight, no man threw even a single punch.

How can this be possible?

What goes up but never comes down?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?