The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

What word is pronounced the same if you take away four of its five letters?

Rose, Lily and Jasmine decided to buy flowers for their moms on Mother's Day. One of them bought lilies, the other roses, and the third one jasmines.
'It's funny!' said the girl with roses, 'we bought roses, jasmines and lilies, but none of us bought the flowers matching her name'.
'You're right!', said Lily.
What kind of flowers did each of the girls buy?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

How many letters are in the alphabet?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

What makes this number unique: 8,549,176,320?

What does the below image rebus riddle means ?