1 There are several thin wooden strips with the lengths of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and1cm, which are sufficient. Three wooden strips can be selected as three sides. If the base is 1 1 cm, how many different triangles can you enclose? There are 7 pairs of white gloves, 8 pairs of black gloves and 9 pairs of red gloves in a bag. A child fumbled for gloves from his bag in the dark, one at a time, but he couldn't see the color clearly. In order to ensure that he can touch at least six gloves, he must touch at least () gloves. Gloves are divided into right and left hands, and any two gloves can be made into a pair. A negotiation meeting between Chinese and foreign companies started at 10 minute, when the wall clock struck the time (only the clock struck the time, how many times did it ring). During the whole meeting, * * * heard the bell of 14, and at the end of the meeting, the hour hand and the minute hand just formed a 90-degree angle. Find out when the meeting started and ended, and what time it is now. Four multiple-choice questions, each question has four options: A, B, C and D, of which only one option is correct. There are 800 students who have done these four questions, and at least _ _ _ _ _ people have exactly the same answers? There are ten people each carrying a bucket of water at the same time. It takes 1 minute to fill the bucket of the first person and 2 minutes to fill the bucket of the second person. ..........................................................................................................................