There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Find the missing letter in the last circle logically in the given below picture.

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?