Funny riddles and puzzles

What month of the year has 28 days?(you can choose more than 1 options)

• January

• February

• March

• April

• May

What has many keys but can’t open a single lock?

• Piano

• Electric Guitar

• Violin

• Classical Guitar

I am a mother's child and a father's child..but nobody's son.Who am I?

• Grandson

• Daughter

• Granddaughter

• Son

Kartik was 13 years old in 1870..and 8 years old in 1875..How is it possible?

• The dates are in AC

• 1875 was a leap year

• 1870 began on the vernal equinox

• The dates are BC

Which is the ten letter word which starts with gas?

• Retirement

• Automobile

• Aberration

• Television

What flies when it's born,lies when it's alive and run when it's dead?

• A grain of sand

• An eaglet

• A snowflake

• A fruit fly

I start with M..end with X,and have a never ending amount of letters.What am I?

• Mix

• Mailbox

• Multiplex

• Matrix

In roman numerals,how many hours in a day?

• XXVI

• XXIV

• XXIL

• XIXV

I'm a 7 letter word.I become longer when my third letter is removed.Who am I?

• Longing

• Lounger

• Lengthy

• Longine

A city where we can't even enter.Who am I?(all letters should be in small)